Glucosamine

Single-ingredient glucosamine reference formula at 1,500 mg per serving, developed as a two-capsule serving or a tablet.

Glucosamine is a reference formula for brands building a single-ingredient amino sugar product at a default amount of 1,500 mg of glucosamine per serving. Glucosamine is the only active ingredient, so the development work centers on a gram-level load: the glucosamine salt (sulfate or hydrochloride), the weight of salt that carries 1,500 mg of glucosamine, and the unit count per serving.

Capsule is the lead format, with the 1,500 mg serving split over two 750 mg capsules as on the reference label, and a tablet version carries the same salt in a compression system. Options of 500, 1,000 and 2,000 mg sit beside the default, and the amount is a decision for the brand and its market review.

Ingredient Composition

IngredientPer ServingRaw Material FormAlternative Form (same amount of active)
Glucosamine1500 mg (default amount)Glucosamine hydrochloride, specified on a glucosamine basis; 1,500 mg glucosamine per servingStabilized glucosamine sulfate (with potassium or sodium chloride), with the input recalculated to 1,500 mg of glucosamine

Amounts are stated as mg of glucosamine. Free glucosamine is C6H13NO5, 179.17 g/mol; the hydrochloride is C6H14ClNO5, 215.63 g/mol and is 83.1% glucosamine by weight, so 1,500 mg of glucosamine needs about 1,805 mg of the salt. The 2:1 sulfate salt is C12H28N2O14S, 456.42 g/mol and holds two glucosamine units, 78.5% by weight (about 1,911 mg for 1,500 mg), and the stabilized sulfate with potassium chloride is C12H28Cl2K2N2O14S, 605.5 g/mol, 59.2% glucosamine (about 2,534 mg). The label basis, glucosamine or salt, is stated in the specification.

Intended Benefits & Formula Rationale

This formula is designed for products positioned around joint nutrition. Glucosamine is included as the single active so that the salt, the amount and the unit count can be set without interaction with other actives.

Intended Benefit DirectionKey IngredientsFormulation Rationale
Joint nutritionGlucosamineIncluded because glucosamine was suggested to lessen clinical symptoms of knee osteoarthritis, the most common osteoarthritis type, for which no cure exists [1]. Evidence: Referenced
Pain outcomes in trialsGlucosamineA systematic review of 15 trials reports global pain significantly lower than placebo on a visual analogue scale, with WOMAC pain, stiffness and function improved but the effects described as insufficient [1]. Evidence: Mixed
Effect size against clinical relevanceGlucosamineA network meta-analysis of 10 trials in 3,803 patients found a pain difference versus placebo of -0.4 cm on a 10 cm scale for glucosamine, smaller than the prespecified minimal clinically important difference of -0.9 cm [2]. Evidence: Contested

The amount is one stated tier. The two reviews differ in how they read the size of the effect, so amount, claims and target market are brand decisions reviewed for each sales market.

Available Formats

The glucosamine reference formula is built for a capsule version and a tablet version; counts per serving are design choices that the brand can adjust.

FormatUnitPer ServingPack SizeOther Ingredients (typical)Suitability
Capsule2 capsules1500 mg120 capsules (60 servings)Gelatin shell, magnesium stearateLead format; matches the two-capsule reference label
Tablet1 tablet1500 mg60 or 90 tabletsMicrocrystalline cellulose, croscarmellose sodium, stearic acid, silicon dioxide, film coatLarge coated unit for brands that avoid capsules

Raw Material Input & Fill (Design Estimate)

Design estimates. The input is the glucosamine amount divided by the glucosamine content of the salt at an assumed 100% assay: glucosamine hydrochloride at 83.1% gives about 1,805 mg of salt for 1,500 mg of glucosamine.

FormatRaw Material Input per UnitDesign FillBalance for ExcipientsVerification Before Scale-Up
Capsule903 mg per capsule (2 per serving)960 mg per capsule57 mgFill weight variation, flow, moisture, content assay of glucosamine
Tablet1805 mg2100 mg tablet weight295 mgCompression behavior, hardness, disintegration, content assay of glucosamine

Powder, liquid and gummy versions are separate projects, because a gram-level amino sugar salt needs its own taste and moisture work in those systems.

Formulation Considerations

Gram-level salt load. About 1.8 g of glucosamine hydrochloride per serving fills two large capsules almost completely or one very large tablet. Capsule size and fill weight follow from the powder density of the chosen salt, and a split into more units is the fallback.
Hygroscopic salt. Glucosamine salts, and the stabilized sulfate in particular, pick up moisture. Blend humidity, a coated tablet or a sealed capsule shell and a desiccant in the bottle are set early to limit caking and softening.
Salt choice and label basis. The hydrochloride carries more glucosamine per gram than the stabilized sulfates, which need up to 40% more raw material. The label states whether the amount is glucosamine or salt, and finished units are assayed on that basis.
Evidence and claims. The reviews in [1] and [2] disagree on whether pain effects are clinically relevant, and the review in [1] reports no serious medication interactions or significant adverse events. Claims for a finished product and the dose limit for each sales market are reviewed before a product is developed.

Customization Options

Brands adjust the amount per serving, the glucosamine salt, the format and the add-ons.

ParameterRangeNote
Amount per serving500, 1000, 1500 or 2000 mgOptions for the brand; capsule count or tablet size changes with the tier
Glucosamine saltHydrochloride or stabilized sulfateGlucosamine percent differs by salt; input recalculated from the assay
FormatCapsule or tabletPowder, liquid and gummy are separate projects
Pack size30 to 120 servingsSet by the brand
Add-onsChondroitin, MSM, vitamin CChondroitin or MSM adds gram-level weight and forces a larger tablet or more capsules

The pilot run confirms capsule fill weight and flow of the salt, moisture behavior of the blend, tablet hardness at the full load, and the content assay of the first units against the labeled amount of glucosamine.

Technical Status & Data Sources

ItemStatusDetails
Reference formulaNIH DSLDThe ingredient and amount come from a labeled product in the NIH DSLD (1500 mg on the label of CF007812, a two-capsule serving; example DSLD labels 57303, 269545, 314357). The label names the ingredient as glucosamine; glucosamine hydrochloride is set as the form.
SpecificationSet in formulationGlucosamine hydrochloride, 1,500 mg glucosamine per serving; assay, water content and impurity limits and method are fixed with the supplier. Unit size, fill weight and stability are set in formulation.
Data sourceNIH DSLDDSLD v9.4.0, downloaded 2026-01-10: 50,824 reference formulas merged from on-market labels with complete ingredient amounts. Counts show how labels are distributed.
Market reviewPer marketDose limits, labeling and claims are reviewed for each sales market before a finished product is developed.
ReferencesSources[1] Vo NX, Le NNH, Chu TDP, et al. Effectiveness and Safety of Glucosamine in Osteoarthritis: A Systematic Review. Pharmacy (Basel). 2023;11(4):117. DOI · PubMed<br>[2] Wandel S, Jüni P, Tendal B, et al. Effects of glucosamine, chondroitin, or placebo in patients with osteoarthritis of hip or knee: network meta-analysis. BMJ. 2010;341:c4675. DOI · PubMed

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