Certification status
USP Verified
Kirkland Signature Kirkland Signature Glucosamine & Chondroitin Tablets
Kirkland Signature Glucosamine & Chondroitin pairs the two best-known joint-support ingredients in a tablet — 1500mg glucosamine HCl and 1200mg chondroitin sulfate across a two-tablet daily serving — from Costco's own brand. USP Verified for identity, purity and potency. Note it contains shellfish, the source of the glucosamine.
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Why this certification matters
- USP Verified
- USP Verified products meet the United States Pharmacopeia standards for ingredient identity, potency, and manufacturing quality.
Frequently asked questions
- How much does a serving provide?
- A two-tablet daily serving supplies 1500mg of glucosamine HCl and 1200mg of chondroitin sulfate — the two ingredients most associated with joint support.
- Does it contain shellfish?
- Yes. The glucosamine is shellfish-derived, so it is not suitable for anyone with a shellfish allergy.
- What does USP Verified mean?
- It means the product is independently checked for identity, purity, potency and manufacturing quality — a quality mark, not a banned-substance certification for tested sport.
- Who makes it?
- Kirkland Signature is Costco's own-label brand.
