BioStacks
Source Naturals

UC-II 40 mg

1 Capsule · 30 servings

iHerbAmazon

Best for

Bone & Joint

Ingredients (3)

UC-II standardized Cartilage

100%

Dose

40 mg

Target

20–100 mg

Form

Premium

Total Collagen

0%

Dose

0.0 g

Target

5–20 g

Form

Not listed

Calcium

104 mg

Trace amount — not scored

Other Ingredients (5)

Magnesium StearateLubricant

A salt of stearic acid used as a lubricant in tablet and capsule production

Silicon DioxideAnti-caking

Fine silica powder used to prevent clumping

Calcium CarbonateBuffer

Common calcium salt used as a buffering agent, filler, or mineral fortification in supplements

GelatinCapsule

Protein derived from collagen, used in traditional capsule shells

PotassiumMineral

Essential mineral naturally present in many plant-based supplement ingredients

How to Take It

Take it anytime

Timing doesn't matter — daily consistency over weeks is what moves outcomes.

With or without food

On the label

1 capsule daily on an empty stomach, preferably before bed.

General guidance based on the ingredients, not a substitute for the label or your doctor.

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Sources & Scoring

Nutrient data (RDA, UL, and safety thresholds) sourced from: NIH Office of Dietary Supplements and National Academies Dietary Reference Intakes (DRI).

This is not medical advice. Consult a healthcare provider before making changes to your supplement routine.

The score analyzes what's on the label: ingredient doses vs. clinical ranges, chemical forms, evidence levels, and known interactions. It does not verify label accuracy or test for contaminants — for that, look for third-party certifications like USP or NSF.

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