Glucosamine HCl at the full 1500mg clinical dose, which is exactly optimal. MSM at 1500mg is above the typical 1000mg studied dose. Both leading ingredients are properly dosed. The main limitation is that glucosamine sulfate (not HCl) is the more studied form, and the evidence base for glucosamine itself is mixed.
The set is generated, never written by the brand.
Kirkland Signature Glucosamine HCI 1500mg with MSM: the formulation holds up. Lead: Glucosamine HCl at 1500 mg. Glucosamine HCl at the full 1500mg clinical dose, which is exactly optimal. Clinical dose on the primary, and the panel holds together.
375 tablets of glucosamine + MSM at proper clinical doses. If you're in the 40-60% who respond to glucosamine, this is the cheapest way to stay on it. 6+ months supply at Costco pricing.
2 of 2 shown, 1 dose at what the trials used

This read comes from the product's own supplement facts panel. Every dose was cross-referenced with published clinical trials to see whether it matches what the studies actually used.

