Product verdict

Kirkland Signature Extra Strength Glucosamine HCl 1500 mg with MSM 1500 mg

12 ingredients on the label. We can see what’s in it, but the panel doesn’t give amounts for the ingredients that matter — so we can’t tell you whether there’s enough.

Methylsulfonylmethane — research exists, the label doesn’t give an amount

This ingredient is studied for real uses, but this panel lists it without a quantity — so whether this bottle holds enough is something we genuinely cannot say. Check the label in your hand against the doses on the linked pages.

Mixed for Chronic Inflammation Mixed for Slow Recovery

0at a studied amount

1under it, untested

0only a trace

11nothing we can say

Supplement Facts

Serving Size 2 Tablet(s)

Servings Per Container 187

Amount Per Serving % Daily Value

Glucosamine Hydrochloride1500 mg†

Methyl Sulfonyl Methane1500 mg†

Methylsulfonylmethane†

Microcrystalline Cellulose†

Hydroxypropyl Methylcellulose†

Carnauba Wax†

Croscamellose Sodium†

Crospovidone†

Magnesium Stearate†

Polyethylene Glycol†

Silica†

Stearic Acid†

† Daily Value not established, or not stated on this label.

no claim either wayunder the tested amountform isn't stated

1 under the amount that was tested

Not tested and failed — untested. Nobody ran those trials at this amount.

Methyl Sulfonyl Methane1500 mg

Some evidence for chronic inflammation — dose is 50% short of the 3000–6000 mg tested.
Some evidence for slow recovery — dose is 50% short of the 3000 mg tested.

Label read from the NIH Dietary Supplement Label Database. Formulations change — check the panel on the bottle in your hand. Check a different product.