Supplement guide

Joint Health Products

Learn about the uses, forms, amounts, and precautions for Joint Health Products. This guide brings the relevant conditions together so you can see who the information covers, how preparations differ, and what to consider before use.

Prepared by Dr. Edward M.Kim, PharmD · Clinical Director, SupplementSafety editorial team · Sources and editorial method

First released · Updated · View changes

What is it used for?

Refer to Tables 2 and 3.

  • It is mandatory for all products to cite at least one use or purpose statement from Table 2.

  • A use or purpose statement is acceptable only if at least one active ingredient associated with that statement is present at a dose at or above the minimum daily dose listed in Table 2.

  • active ingredients which do not meet the minimum daily dose for a use or purpose statement will be considered as acceptable complementary active ingredients in product formulations.

  • For multi-ingredient products:

    • To prevent the product from being represented as a "traditional medicine", any indicated traditional use claim must refer to the specific active ingredient(s) and recognized traditional system of medicine from which the claim originates when 1) both traditional and modern claims are present or 2) when claims originate from multiple systems of traditional medicine (e.g., Turmeric is traditionally used in Herbal Medicine to help relieve joint pain).

    • When ALL of the active ingredients (MIs) in the product are used within the SAME identified system of traditional medicine AND the product makes ONLY traditional claims, listing of MIs in the traditional claim(s) is not required.

What this guide covers

this reference is intended to serve as a guide to industry for the preparation of product documentation for supplement market authorization.

  • this reference may be used to support single ingredient or multi-ingredient products. However, it is mandatory for joint health products to contain at least one active ingredient from Table 2 at therapeutic dose with its associated claim(s).

  • As enhanced absorption formulations are often used for Turmeric and its constituents, this is a reminder that enhanced absorption dosage forms/formulations are not covered by Natural and Non-prescription Health Products Directorate's references and should be submitted as Class III submissions with supporting evidence.

Who does this guide cover?

Adults 18 years and older

How is it taken?

Oral

Which forms are covered?

this reference excludes foods or food-like dosage forms as indicated in the Compendium of references Guidance Document.

Quantities

Refer to Tables 2 and 3.

Note: When ‘decoction’ or ‘infusion’ is listed as an acceptable method of preparation, ‘decoction concentrate’ or ‘infusion concentrate’ is also allowed. It also applies to standardized methods of preparation.

Table 2. Joint health uses or purposes and associated daily doses
active ingredientsUses or purposes¹Methods of preparationDose/day / Minimum²Dose/day / Maximum³Single dose / Maximum single dose³
Boswellia serrataHelps relieve joint pain and swelling associated with osteoarthritis of the knee.Standardized Extracts999 mg extracts standardized to 40% boswellic acid999 mg extracts standardized to 40% boswellic acid333 mg extracts standardized to 40% boswellic acid
Chondroitin sulfateHelps relieve (joint) pain associated with osteoarthritis (of the knee).N/A800 mg1,200 mgN/A
CurcuminHelps relieve joint pain and inflammation.N/A1,200 mg1,200 mg400 mg
CurcuminoidsHelps relieve joint pain and inflammation.N/A1,500 mg Optional: The potency constituent, curcumin, can be included1,500 mg Optional: The potency constituent, curcumin, can be included500 mg
Turmeric (concentrated extracts)Helps relieve joint pain and inflammation.Standardized ExtractsExtract standardized to 75% curcuminoids or more; Providing 1,500 mg curcuminoids Optional: The potency constituent, curcumin, can be includedExtract standardized to 75% curcuminoids or more; Providing 1,500 mg curcuminoids Optional: The potency constituent, curcumin, can be includedExtract standardized to 75% curcuminoids or more; Providing 500 mg curcuminoids
Turmeric (native extracts)⁴(Traditionally) used in Herbal Medicine (as an anti-inflammatory) to help relieve joint pain.Dry, Powdered, Non-Standardized Extracts (Dry extract*, Tincture, Fluid extract, Decoction, Infusion)1,000 mg dried rhizome; For dry extracts, maximum ratio is 10:19,000 mg dried rhizome; For dry extracts, maximum ratio is 10:1N/A
Turmeric (native extracts)⁴(Traditionally) used in Herbal Medicine (as an anti-inflammatory) to help relieve joint pain.Standardized ExtractsExtracts providing up to 35% curcuminoids and a Quantity crude equivalent of 1,000 mg dried rhizome Optional: The potency constituent, curcumin, can be includedExtracts providing up to 35% curcuminoids and a Quantity crude equivalent of 9,000 mg dried rhizome Optional: The potency constituent, curcumin, can be includedN/A
Devil's clawUsed in Herbal Medicine to help relieve joint pain associated with osteoarthritis.Dry, Powdered, Non-Standardized Extracts (Dry extract*, Tincture, Fluid extract, Decoction, Infusion)600 mg dried secondary root tubers7,500 mg dried secondary root tubersN/A
Fish oil⁵In conjunction with conventional therapy, helps reduce the pain of rheumatoid arthritis in adults.Standardized fixed oil2,800 mg eicosapentaenoic acid (EPA) + docosahexaenoic acid (DHA) with a EPA:DHA ratio of 0.5:1-2:15,000 mg EPA + DHA with a EPA:DHA ratio of 0.5:1-2:1N/A
Glucosamine hydrochlorideHelps maintain healthy cartilage/joint health.N/A1,500 mg2,000 mgN/A
Glucosamine sulfate
  • Helps relieve joint pain associated with osteoarthritis (of the knee).
  • Helps protect against the deterioration of cartilage.
  • A factor in maintaining healthy cartilage and/or joint health.
N/A1,500 mg1,500 mgN/A
Hyaluronic acidHelps support joint health.N/A48 mg (sourced from Gallus gallus comb)120 mg (sourced from Gallus gallus comb)N/A
Hyaluronic acidHelps support joint health.N/A120 mg (sourced from microbial fermentation)200 mg (sourced from microbial fermentation)N/A
Hydrolyzed collagen
  • Helps reduce joint pain associated with osteoarthritis.
  • Helps reduce osteoarthritis-related joint pain.
  • Helps manage/in the management of joint pain.
N/A1,200 mg10,000 mgN/A
Methylsulfonylmethane (MSM)Helps relieve (joint) pain associated with osteoarthritis (of the knee).N/A1,500 mg6,000 mg2,000 mg
Willow barkUsed in Herbal Medicine to relieve minor joint pain (due to osteoarthritis).Dry, Powdered, Non-Standardized Extracts (Dry extract, Tincture, Fluid extract, Decoction, Infusion)3,000 mg dried (young branch) bark9,000 mg dried (young branch) bark3,000 mg dried (young branch) bark
Willow barkUsed in Herbal Medicine to relieve minor joint pain (due to osteoarthritis).Standardized ExtractsExtract providing up to 15% total salicin equivalent to 45 mg total salicinExtract providing up to 15% total salicin equivalent to 240 mg total salicinExtract providing up to 15% total salicin equivalent to 120 mg total salicin

¹At least two of the following references were consulted per use or purpose: EMA 2017; Bruyère et al. 2012; Benito-Ruiz et al. 2009; Yoshida et al. 2009; Clark et al. 2008; Winston and Kuhn 2008; Herrero-Beaumont et al. 2007; Mazières et al. 2007; Sontakke et al. 2007; Towheed and Anastassiades 2007; Kim et al. 2006; Mills and Bone 2005; Uebelhart et al. 2004; Usha and Naidu 2004; Braham et al. 2003; ESCOP 2003; Hoffmann 2003; Kimmatkar et al. 2003; Pavelka et al. 2002; Sato et al. 2002; Mazières et al. 2001; Reginster et al. 2001; Thie et al. 2001; Blumenthal et al. 2000; Mills and Bone 2000; Volker et al. 2000; Houpt et al. 1999; Bourgeois et al. 1998; Bucsi and Poor 1998; Uebelhart et al. 1998; Sköldstam et al. 1992; Deodhar et al. 1980. ²At least one of the following references was consulted per minimum dose: EMA 2017; Bruyère et al. 2012; Benito-Ruiz et al. 2009; WHO 2009; Yoshida et al. 2009; Clark et al. 2008; Kalman et al. 2008; Herrero-Beaumont et al. 2007; Mezieres et al. 2007; Sontakke et al. 2007; Fitzpatrick 2005; Mills and Bone 2005; Boon and Smith 2004; Uebelhart et al. 2004; Usha and Naidu 2004; Wichtl 2004; ESCOP 2003; Hoffmann 2003; Kimmatkar et al. 2003; Williamson 2003; Barnes et al. 2002; Pavelka et al. 2002; Mezieres et al. 2001; Reginster et al. 2001; Blumenthal et al. 2000; Volker et al. 2000; Houpt et al. 1999; Bucsi and Poor 1998; Uebelhart et al. 1998; Deodhar et al. 1980. ³At least one of the following references was consulted per maximum dose: EMA 2017; Bruyère et al. 2012; Benito-Ruiz et al. 2009; WHO 2009; Clark et al. 2008; Sato et Iwaso 2008; Herrero-Beaumont et al. 2007; Sontakke et al. 2007; Hathcock and Shao 2006; Kim et al. 2006; Mills and Bone 2005; Boon and Smith 2004; Wichtl 2004; Braham et al. 2003; ESCOP 2003; Kimmatkar et al. 2003; Williamson 2003; Barnes et al. 2002; Pavelka et al. 2002; Sato et al. 2002; Reginster et al. 2001; Blumenthal et al. 2000; Bourgeois et al. 1998; US FDA 1997; BHC 1992; Deodhar et al. 1980. ⁴Turmeric: Refer to the Turmeric reference for more information on native extracts. ⁵Fish oil: The EPA:DHA ratio for fish oil must be between 0.5:1 and 2:1 [Source note 5] and potency must be expressed as the quantity (mg) and/or percent (%) of EPA and DHA (% w/w) relative to the total quantity of fish oil.

*Note: For Devil's claw and Turmeric, solvents allowed for the method of preparation "Non-standardized extracts (Dry extract)" as part of this reference are ethanol and/or water only.

The following claims are only acceptable in addition to at least one claim from Table 2 above. A joint health product cannot contain only ingredients and claims from Table 3.

Table 3. Additional uses or purposes (optional) and associated daily doses
active ingredientsUses or purposes¹Methods of preparationDose/day / Minimum²Dose/day / Maximum³Single dose / Maximum/ single dose³
beta-Carotene
  • Provitamin A/Source of vitamin A to help in the development and maintenance of bones.
  • Helps in the development and maintenance of bones.
N/A390 µg18,000 µgN/A
Boron⁴Helps maintain healthy calcium metabolism.N/A0.7 mg3.36 mg⁴N/A
Bromelain⁵Used in herbal medicine to help relieve minor pain, swelling and inflammation.N/A480,000 FCC PU130,000,000 FCC PU45,000,000 FCC PU
Calcium
  • Adequate calcium (and vitamin D) (throughout life) as part of a healthy diet, (along with physical activity) may help prevent bone loss/osteoporosis (in peri- and postmenopausal women) (in later life).
  • Adequate calcium (and vitamin D) (throughout life) as part of a healthy diet, (along with physical activity) may reduce the risk of developing osteoporosis (in peri- and postmenopausal women) (in later life).
  • As part of a healthy diet (when taken with Vitamin D) may help prevent bone loss/osteoporosis.
  • Helps in the development and maintenance of bones.
  • Helps maintain/support bone health.
N/A65 mg1,500 mgN/A
MagnesiumHelps in the development and maintenance of bones.N/A20 mg500 mgN/A
ManganeseHelps in the development and maintenance of bones.N/A0.13 mg9 mgN/A
Vitamin A
  • Helps in the development and maintenance of bones.
  • Helps build strong bones
N/A65 µg RAEall-trans Retinol: 3,003 µg RAEN/A
Vitamin A
  • Helps in the development and maintenance of bones.
  • Helps build strong bones
N/A65 µg RAEall-trans Retinyl acetate: 3,000 µg RAEN/A
Vitamin A
  • Helps in the development and maintenance of bones.
  • Helps build strong bones
N/A65 µg RAEall-trans Retinyl palmitate: 3,022 µg RAEN/A
Vitamin C
  • Helps in the development and maintenance of bones.
  • Helps in collagen formation to maintain/support healthy bones.
N/A6 mg2,000 mgN/A
Vitamin D
  • Helps in the development and maintenance of bones.
  • Vitamin D intake, when combined with sufficient calcium, a healthy diet, and regular exercise, may reduce the risk of developing osteoporosis.
N/A1 µg25 µgN/A
Vitamin K₁ Vitamin K₂ and total Vitamin K₁ + K₂Helps in the maintenance of bones.N/A6 µg120 µgN/A

¹At least two of the following references were consulted per use or purpose: HC 2018; Hunt 2012; FDA 2008; Tang et al. 2007; IOM 2006; NAMS 2006; Shils et al. 2006; Devirian and Volpe 2003; Brown and Josse 2002; Walker et al. 2002; Groff and Gropper 2000; NIH 2001; Blumenthal 1998; IOM 1997; Nielsen et al. 1987. ²At least one of the following references was consulted per minimum daily dose: HC 2018; Hunt 2012; IOM 2006; Walker et al. 2002; Blumenthal 1998. ³At least one of the following references was consulted per maximum daily dose: HC 2018; Hunt 2012; IOM 2006; Kerkhoffs et al. 2004; Singer et al. 2001. ⁴Boron: Specific rule for boron for products providing more than 0.7 mg of boron per day. Refer to the ‘Notes’ section below. ⁵Bromelain: One papain unit (PU) is defined as that quantity of enzyme that liberates the equivalent of 1 microgram of tyrosine per hour under the conditions of the assay. One gelatin digestion unit (GDU) is approximately equivalent to 15,000 FCC papain unit (1 GDU ≈ 15,000 FCC PU). The quantity per dosage unit must be the enzymatic activity. The quantity of the enzymatic preparation in mg or ml may also be included as additional quantity

  • The above uses can be combined on the product label (e.g. Helps maintain joint health and reduce joint pain associated with osteoarthritis).

  • The terms ‘Helps’ or ‘Helps to’ can be used interchangeably on the label.

  • Specific rule for products providing more than 0.7 mg of boron per day: in order to ensure a favorable risk-benefit profile, a product providing elemental boron at doses in excess of 0.7 mg and up to the maximum limit of 3.36 mg per day must:

    • be a joint health product;

    • contain at least one active ingredient from Table 2; and

    • make only the specified joint pain/health claims from Table 2. In addition, the claim associated with boron ‘Helps maintain healthy calcium metabolism’ can be included.

    Other health products such as multi-vitamin/mineral supplements must not provide more than the maximum limit of 0.7 mg elemental boron per day.

How is it used?

Table 4. Direction(s) for use
active ingredientsDaily doseDirections for use¹
Boron0.7 mg or more boron when the claim associated with boron is made and if the product formulation does not also contain amounts of vitamin D and calcium that meet the minimum doses from the source authority Multi-Vitamin/Mineral Supplement reference.Take with vitamin D and calcium.
BromelainAll doses (Optional)Take with food.
CalciumAll doses
  • Take with food.
  • Take a few hours before or after taking other medications or health products.
Methylsulfonylmethane (MSM)1,500 mg or more MSM
  • Take with food.
  • Avoid taking at bedtime.

¹The following references were consulted for the directions for use: Boron: Devirian and Volpe 2003; Zittermann 2003; Calcium: Brayfield and Cadart 2025, IOM 2011, ASHP 2005; MSM: Kim et al. 2006.

How long is it used?

  • A minimum duration of use statement is required for all products citing use or purpose statements associated with boswellia, chondroitin sulfate, devil's claw, glucosamine (hydrochloride and sulfate), hydrolyzed collagen or methylsulfonylmethane (MSM).

  • If more than one minimum duration of use is required for a particular product formulation, the shortest minimum duration of use must be the only one listed on the label since they are associated with similar uses.

  • A maximum duration of use statement is required for all products containing bromelain or willow bark. If the maximum duration of use is shorter than the minimum duration of use to see beneficial effects, the associated claim cannot be included. If more than one maximum duration of use is required for a particular product formulation, the shortest maximum duration of use statement must be the only one listed on the label.

Minimum duration(s) of use

Table 5. Minimum duration(s) of use
active ingredientsMinimum durations of use¹
Hydrolyzed collagenUse for at least 20 weeks to see beneficial effects.
Chondroitin sulfateUse for at least 12 weeks to see beneficial effects.
Devil's clawUse for at least 8 weeks to see beneficial effects.
BoswelliaUse for at least 8 weeks to see beneficial effects.
Glucosamine hydrochlorideUse for at least 4 weeks to see beneficial effects.
Glucosamine sulfateUse for at least 4 weeks to see beneficial effects.
Methylsulfonylmethane (MSM)Use for at least 4 weeks to see beneficial effects.

¹At least one of the following references was consulted per duration of use: Bruyère et al. 2012; Benito-Ruiz et al. 2009; Clark et al. 2008; Bjordal et al. 2007; Mehta et al. 2007; Sontakke et al. 2007; Kim et al. 2006; Usha and Naidu 2004; ESCOP 2003; Kimmatkar et al. 2003; Houpt et al. 1999; Qiu et al. 1998.

Maximum duration(s) of use

Products providing 60,000,000 FCC PU or less bromelain, per day

Ask a healthcare professional for use beyond 16 weeks [Source note 6].

Products providing more than 60,000,000 FCC PU bromelain, per day

Ask a healthcare professional for use beyond 4 weeks.

Products containing willow bark

Ask a healthcare professional for use beyond 6 weeks [Source note 7].

Warnings and precautions

Products providing more than 2.8 g of hydrolyzed collagen per day or any other active ingredient from Table 2 at any dose (except products containing willow bark requiring a contraindication)

Ask a healthcare professional before use if you are pregnant or breastfeeding.

(Joint) pain (and swelling) associated with osteoarthritis or rheumatoid arthritis

Ask a healthcare professional if symptoms worsen.

Joint inflammation/anti-inflammatory/minor pain, swelling and inflammation relief

Ask a healthcare professional if symptoms persist or worsen.

Products containing following active ingredients

Table 6. Caution(s) and warning(s)
active ingredientsDaily doseCautions and warnings¹
beta-CaroteneMore than 6,000 µgAsk a healthcare professional before use if you are a tobacco smoker.
BoronMore than 0.7 mgAsk a healthcare professional before use if you have been diagnosed with estrogen-dependant cancer or have a kidney disorder.
BromelainAll doses
  • Ask a healthcare professional before use if you have gastrointestinal lesions/ulcers or are having a surgery.
  • Ask a healthcare professional before use if you are taking blood thinners, anti-inflammatory agents or antibiotics.
Curcumin/Curcuminoids/Turmeric (concentrated extracts)All doses
  • Ask a healthcare professional before use if you have a liver or biliary disorder.
  • Ask a healthcare professional before use if you are taking medications including blood thinners.
  • Stop use and ask a healthcare professional if you experience any new symptoms including yellowing of the eyes or skin, dark urine, nausea, vomiting, stomach pain.
Fish oil and willow bark combinedAll dosesAsk a healthcare professional before use if you are having a surgery.
ManganeseMore than 5 mgAsk a healthcare professional before if you have a liver disorder.
Turmeric (native extracts)All doses
  • Ask a healthcare professional before use if you have a liver or biliary disorder.
  • Ask a healthcare professional before use if you are taking medications.
  • Stop use and ask a healthcare professional if you experience any new symptoms including yellowing of the eyes or skin, dark urine, nausea, vomiting, stomach pain.
Vitamin K₁ and/or K₂All dosesAsk a healthcare professional before use if you are taking blood thinners.
Willow barkAll doses
  • Ask a healthcare professional before use if you have asthma or peptic ulcer disease.
  • Ask a healthcare professional before use if you are taking blood thinners or products containing salicylates (e.g., acetylsalicylic acid or non-steroidal anti-inflammatory drugs).

¹The following references were consulted for the caution and warning statements: beta-Carotene: Touvier et al. 2005; Omenn et al. 1996; ATBC 1994; Boron: Usuda et al. 1996; Nielsen et al. 1992; Bromelain: Brinker 2010; Blumenthal et al. 2000; Curcumin: HC 2025; Brinker 2010; Mills and Bone 2005; ESCOP 2003; McGuffin et al. 1997; Fish oil and willow bark combined: Block et al. 2012, 2013; Larson et al. 2008; Manganese: IOM 2006; IOM 2001; Krieger et al. 1995; Turmeric: HC 2025; EMA 2018; Brinker 2010; ESCOP 2003; McGuffin et al. 1997; Vitamin K1, K2: ASHP 2005; Franco et al 2004; IOM 2001; Hansten et al 1997; Willow bark: EMA 2017.

When should it be avoided?

Products containing willow bark

  • Do not use if you are pregnant or breastfeeding [Source note 8].

  • Do not use if you are allergic to salicylates (EMA 2017; Brinker 2010; Wichtl 2004, ESCOP 2003; Barnes et al. 2002; Blumenthal et al. 2000).

Possible side effects

Products containing boswellia and/or bromelain

Stop use if hypersensitivity/allergy occurs [Source note 9].

Products containing boswellia; bromelain; hydrolyzed collagen; methylsulfonylmethane and/or willow bark

When using this product you may experience gastrointestinal discomfort/disturbances [Source note 10].

Products providing more than 350 mg magnesium per day

When using this product you may experience diarrhoea (IOM 2006, IOM 1997).

Storage

Must be established in accordance with the requirements described in the applicable product regulations.

Products containing fish oil, except those encapsulated

Refrigerate after opening [Source note 11].

Products containing fish oil (information for industry; not for labelling)

To be packaged in airtight container, protected from light [Source note 12].

Products containing hydrolyzed collagen (information for industry; optional for labelling depending on the packaging)

To be protected from heat and moisture [Source note 13].

Conditions for combined preparations

  • For multi-ingredient products containing bromelain and papain, the combined proteolytic activity should not exceed the maximum proteolytic activity of 130,000,000 FCC PU per day and 45,000,000 FCC PU per single dose.

  • The finished product should not exceed a total amount of curcuminoids of 500 mg per dose and 1500 mg per day.

  • The finished product should not exceed a total amount of curcumin of 400 mg per dose and 1200 mg per day.

  • The daily dose for glucosamine hydrochloride in combination with glucosamine sulfate is subject to the following limitations: the sum of the percentages of their individual maximum daily doses must not exceed 120%; [e.g. a product providing a daily dose of 2000 mg glucosamine hydrochloride (100% of the 2000 mg maximum daily dose) + 300 mg glucosamine sulfate (20% of the 1500 mg maximum daily dose) would be acceptable (100%+20%=120%)].

Preparation details

Ingredient identity, preparation requirements, and other details that define the scope of this guide.

Ingredients and preparations
Table 1. Proper name(s), Common name(s), Source information¹
Proper name(s)Common name(s)Source information / Source ingredient(s)Source information / Source material(s)Source information / Part(s)Source information / Preparation(s)
  • all-trans-beta-Carotene
  • beta-Carotene
  • all-trans-beta-Carotene
  • beta-Carotene
beta-CaroteneN/AN/AAs per source authority Multi- Vitamin/Mineral Supplements reference
BoronBoronAs per source authority Multi-Vitamin/Mineral Supplements referenceN/AN/AAs per source authority Multi- Vitamin/Mineral Supplements reference
Boswellia serrata
  • Boswellia
  • Indian frankincense
  • Indian olibanum
  • Indian olibanum-tree
  • Shallaki
N/ABoswellia serrata
  • Stem bark oleogum resin
  • Trunk bark oleogum resin
Dry
BromelainBromelainN/A
  • Ananas comosus var. bracteatus
  • Ananas comosus var. comosus
  • Fruit
  • Stem
N/A
CalciumCalciumAs per source authority Multi- Vitamin/Mineral Supplements referenceN/AN/AAs per source authority Multi- Vitamin/Mineral Supplements reference
Chondroitin sulfate²Chondroitin sulfateSodium chondroitin sulfate
  • Anas platyrhynchos
  • Anser anser
  • Bos taurus
  • Cygnus olor
  • Dromaius
  • novaehollandiae
  • Gallus gallus
  • Meleagris gallopavo
  • Numida meleagris
  • Rhea americana
  • Struthio camelus
  • Sus scrofa
CartilageN/A
(1E,6E)-1,7-Bis(4-hydroxy-3-methoxyphenyl)-1,6-heptadiene-3,5-dioneCurcuminN/ACurcuma longaRhizomeN/A
(1E,6E)-1,7-Bis(4-hydroxy-3-methoxyphenyl)-1,6-heptadiene-3,5-dioneCurcuminCurcuminN/AN/ASynthetic
CurcuminoidsCurcuminoidsN/ACurcuma longaRhizomeN/A
Curcuma longa
  • Common turmeric
  • Curcuma
  • Indian-saffron
  • Jianghuang
  • Turmeric
  • Yellow ginger
N/ACurcuma longaRhizomeDry
Harpagophytum procumbens
  • Devil's claw
  • Grapple plant
  • Wood spider
N/AHarpagophytum procumbensSecondary root tubersDry
Harpagophytum zeyheri
  • Devil's claw
  • Grapple plant
  • Wood spider
N/AHarpagophytum zeyheriSecondary root tubersDry
Fish oil³Fish oilN/A
  • Ammodytidae
  • Carangidae
  • Clupeidae
  • Engraulidae
  • Gadidae⁴
  • Osmeridae
  • Salmonidae
  • Scrombridae
WholeN/A
2-Amino-2-deoxy-beta-D-glucopyranose hydrochloride
  • Glucosamine HCl
  • Glucosamine hydrochloride
Glucosamine hydrochloride
  • Crab⁵
  • Krill⁵
  • Lobster⁵
  • Prawn⁵
  • Shrimp⁵
ExoskeletonN/A
2-Amino-2-deoxy-beta-D-glucopyranose hydrochloride
  • Glucosamine HCl
  • Glucosamine hydrochloride
Glucosamine hydrochloride
  • Aspergillus flavus var. oryzae
  • Aspergillus melleus
  • Aspergillus niger
  • Aspergillus niger var. awamori
  • Monascus pilosus
  • Monascus purpureus
  • Rhizopus oryzae
WholeFermented
2-Amino-2-deoxy-D-glucose sulfateGlucosamine sulfate
  • Glucosamine sulfate potassium chloride
  • Glucosamine sulfate sodium chloride
  • Crab⁵
  • Krill⁵
  • Lobster⁵
  • Prawn⁵
  • Shrimp⁵
ExoskeletonN/A
2-Amino-2-deoxy-D-glucose sulfateGlucosamine sulfate
  • Glucosamine sulfate potassium chloride
  • Glucosamine sulfate sodium chloride
  • Aspergillus flavus var. oryzae
  • Aspergillus melleus
  • Aspergillus niger
  • Aspergillus niger var. awamori
  • Monascus pilosus
  • Monascus purpureus
  • Rhizopus oryzae
WholeFermented
Hyaluronic acid⁶Hyaluronic acidSodium hyaluronateGallus gallusCombN/A
Hyaluronic acid⁶Hyaluronic acid
  • Hyaluronic acid
  • Sodium hyaluronate
Streptococcus equiBacterial extracellular capsuleFermented
Hydrolyzed collagen⁷
  • Collagen hydrolysate
  • Hydrolyzed collagen
N/ABovineBovine skin/hide splitN/A
Hydrolyzed collagen⁷
  • Collagen hydrolysate
  • Hydrolyzed collagen
N/APorcine
  • Bone
  • Skin
N/A
Hydrolyzed collagen⁷
  • Collagen hydrolysate
  • Hydrolyzed collagen
N/AFish
  • Bone
  • Skin
N/A
Hydrolyzed collagen⁷
  • Collagen hydrolysate
  • Hydrolyzed collagen
N/AChickenCartilageN/A
MagnesiumMagnesiumAs per source authority Multi-Vitamin/Mineral Supplements referenceN/AN/AAs per source authority Multi-Vitamin/Mineral Supplements reference
ManganeseManganeseAs per source authority Multi-Vitamin/Mineral Supplements referenceN/AN/AAs per source authority Multi-Vitamin/Mineral Supplements reference
  • Dimethyl sulfone
  • Methylsulfonylmethane
  • Sulfonylbismethane
  • Methylsulfonylmethane
  • MSM
Dimethyl sulfoneN/AN/ASynthetic
Vitamin AVitamin AAs per source authority Multi-Vitamin/Mineral Supplements referenceN/AN/AAs per source authority Multi-Vitamin/Mineral Supplements reference
Vitamin CVitamin CAs per source authority Multi-Vitamin/Mineral Supplements referenceN/AN/AAs per source authority Multi-Vitamin/Mineral Supplements reference
Vitamin D
  • Vitamin D
  • Vitamin D₂
As per source authority Multi-Vitamin/Mineral Supplements referenceN/AN/AAs per source authority Multi-Vitamin/Mineral Supplements reference
Vitamin D
  • Vitamin D
  • Vitamin D₃
As per source authority Multi-Vitamin/Mineral Supplements referenceN/AN/AAs per source authority Multi-Vitamin/Mineral Supplements reference
Vitamin K₁Vitamin K₁As per source authority Multi-Vitamin/Mineral Supplements referenceN/AN/AAs per source authority Multi-Vitamin/Mineral Supplements reference
Vitamin K₂Vitamin K₂As per source authority Multi-Vitamin/Mineral Supplements referenceN/AN/AAs per source authority Multi-Vitamin/Mineral Supplements reference
Willow barkWillow barkN/A
  • Salix alba
  • Salix daphnoides
  • Salix purpura
  • Salix x fragilis
  • Bark
  • Young branch bark
Dry

¹References: Proper names: Brayfield and Cadart 2025; NIHa 2023; RSC 2023; USP-NF 2023; USDA 2023; Ph.Eur. 2012; ICIDH 2008; Kralovec and Barrow 2008; Towheed and Anastassiades 2007; IUBMB 1992. Common names: Brayfield and Cadart 2025; NIHa 2023; RSC 2023; USP-NF 2023; PPRC 2020; BP 2012; Ph.Eur. 2012; Goel et al. 2008; ICIDH 2008; Kralovec and Barrow 2008; Towheed and Anastassiades 2007; Boon and Smith 2004; McGuffin et al. 2000; Moskowitz 2000; IUBMB 1992; Deodhar et al. 1980. Source information: Brayfield and Cadart 2025; FCC 2024; ITIS 2023; NIHb 2023; RSC 2023; USDA 2023; USP-NF 2023; PPRC 2020; Froese and Pauly 2018; EMA 2017; Ph.Eur. 2012; Schauss et al. 2012; Sitanggang et al. 2012; EP 2011; Khan and Abourashed 2010; Evans 2009; Yoshida et al. 2009; Goel et al. 2008; Kalman et al. 2008; Kralovec and Barrow 2008; Sato and Iwaso 2008; Chmielowski et al. 2007; Schrieber and Gareis 2007; Dahiya et al 2006; Chong et al. 2005; Boon and Smith 2004; Wichtl 2004; Baziwane and He 2003; ESCOP 2003; Barnes et al. 2002; Sato et al. 2002; Blumenthal et al. 2000; BHC 1992; Deodhar et al. 1980. ²Cartilage must be derived from healthy and domestic animals used for food by humans [Source note 1]. ³Corresponds to oil from the whole body of one or more of species of the families listed in Table 1 in its natural and/or concentrated triglyceride/triacylglycerol form and/or its concentrated esterified form [Source note 2]. The species common names and not the family could be listed on the label. ⁴For fish oils including species of Gadidae as a source material, the vitamin A and D content should be tested to ensure that the daily maximum amounts meet the Multi-Vitamin/Mineral Supplements reference for each age group. ⁵ specific organisms used as source material(s) must be indicated in the Animal Tissue Form (ATF); simply indicating “crustaceans” is insufficient. ⁶The stabilizing salt (i.e. sodium) if present should be indicated. ⁷For the purpose of this reference, hydrolyzed collagen has no jelling power and is soluble in cold water [Source note 3]. The average molecular weight of hydrolyzed collagen is approximately 4 kDa (i.e. 2-6 kDa) [Source note 4].

Other ingredients

Must be chosen from the current source ingredient database and must meet the limitations outlined in that database.

Preparation and quality requirements
  • The finished product specifications must be established in accordance with the requirements described in the source authority source’s product quality guidance.

  • The active ingredient must comply with the requirements outlined in the source ingredient database.

  • Ingredients sourced from bovine tissues

    1. Source animal is fit for human consumption;

    2. Source material can be traced back to the herd or animal;

    3. Avoidance of cross-contamination with high-infectivity tissues is ensured during sourcing;

    4. Manufacturing procedures that are known to reduce infectivity are implemented (e.g. procedures that are in accordance with those outlined in Chapter 5.02.08 of the European Pharmacopoeia 2012 ‘Minimising the risk of transmitting animal spongiform encephalopathy agents via human and veterinary medicinal products’).

  • Fish oil

    1. Peroxide, anisidine, and totox values of fish oil and omega-3 fatty acids derived from fish oil must be in accordance with the methods set out by the Association of Analytical Community (AOAC) and/or Pharmacopoeial analytical methods. These specifications are necessary to ensure the oxidative stability of the fish oil and the omega-3 fatty acids derived from fish oil [Source note 14]. The maximum peroxide value (PV) must be 5 mEq/kg, the maximum anisidine value (AV) must be 20 while the maximum Totox value must be 26 (calculated as 2 X PV + AV).

    2. The dioxins, polychlorinated dibenzo-para-dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs); the dioxin-like polychlorinated biphenyls (dioxin-like PCBs; and the polychlorinated biphenyls (PCBs) are contaminants in oils from marine sources. Testing for these contaminants are required. As indicated in the source’s product quality guidance, testing should be performed using appropriate analytical methods, such as method No. 1613 revision B of the Environmental Protection Agency for PCDDs and PCDFs and method No. 1668B of the Environmental Protection Agency for chlorinated biphenyl congeners. product authorization holders are advised to consult the Commission of the European Communities documents on dioxins and dioxin-like PCB contaminants in marine oil for further information. Refer to the source’s product quality guidance for more information on the acceptable limits of dioxins and dioxin-like PCBs.

    3. For fish oils including Gadidae as a source material, the vitamin A and D content should be tested to ensure that their respective daily maximum amounts meet the Multi-Vitamin/Mineral Supplements reference for each age group.

  • Bromelain

    1. Details of the manufacturing of the enzyme at the raw material stage should include fermentation medium, and the isolation process of the active ingredient.

    2. The specifications must include testing for enzymatic activity of the active ingredient at appropriate stages of formulation and manufacturing using the assay outlined in the current Food Chemicals Codex (FCC): PLANT PROTEOLYTIC ACTIVITY.

    3. Where published methods are not suitable for use, manufacturers will use due diligence to ensure that the enzymes remain active to the end of the shelf life indicated on the product label.

  • Chondroitin sulfate

    1. Comply with the specifications outlined in the Chondroitin Sulfate Sodium references published in the British or European Pharmacopoeiae, or the United States Pharmacopoeia or;

    2. Be cited in an approved NHP Master File, authorized by a letter of access issued to the applicant by the NHP Master File's registered owner

  • Hyaluronic acid

    1. Information pertaining to the molecular weight of the hyaluronic acid must be available upon request for characterization (e.g. Certificate of Analysis, Technical Data Sheet, Product Information, etc). The average molecular weight of hyaluronic acid obtained from Gallus gallus comb must be 800 kDa. The average molecular weight of sodium hyaluronate from Streptococcus equi must be 900 kDa.

    2. Information regarding Method of preparation must be provided upon request

    3. For all products obtained through microbial fermentation, the species of Streptococcus used must be provided upon request and should be substantiated by the evidence. Information regarding manufacturing processes that reduce or eliminate pyrogenic or inflammatory components of the cell wall must be submitted upon request.

    4. The content of sulfated glycosaminoglycans, nucleic acids, protein, and microbial contamination derived from this ingredient must be in accordance with the methods set out by the European Pharmacopoeia:

      • Sulfated glycosaminoglycans: maximum 1%, if the ingredient is extracted from Gallus galluscomb

      • Nucleic acids: the absorbance of solution at 260 nm is maximum 0.5

      • Protein: maximum 0.3%

      • Microbial contamination: Total Aerobic Microbial Count of 10² CFU/g

  • Hydrolyzed Collagen

    1. For the purpose of this reference, hydrolyzed collagen has no jelling power and is soluble in cold water [Source note 15].

    2. The average molecular weight of hydrolyzed collagen is approximately 4 kDa (i.e. 2-6 kDa) [Source note 16].

Guide change history

Updates to this SupplementSafety.org guide.

  1. Minor updates

    Updated guide wording, organization, and source presentation. Added our editorial change history.

  2. Initial release

    Initial SupplementSafety.org guide prepared from source reference material.

Validation: Not yet completed. Editorial updates do not constitute clinical validation.

Sources

Source information

This guide organizes source material about uses, preparations, amounts, and precautions. Read the conditions alongside each statement; the information may apply only to particular preparations or populations.

The source document includes supporting references. We have not independently summarized or assessed every cited study for this guide.

Source document version
December 19, 2025
Source captured
Aug 15, 2026
Editorial work
Editorial preparation. Independent clinical review has not been recorded for this guide.

Full citations are available through the link above. Verification is required to open them; reading this guide does not require verification.

Taking a medication too?

Explore our supplement–medication interaction checker. Its coverage and review status are shown with the results; a missing finding does not establish that a combination is safe.

Browse all supplement guides →