BioStacks
Carlson

Selenium

1 Capsule · 60 servings · $0.13/serving

iHerbAmazon

Best for

Hormones

Ingredients (2)

Selenium

100%

Dose

200 mcg

Target

100–200 mcg

Form

Premium

Calcium

22 mg

Trace amount — not scored

Other Ingredients (4)

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

GelatinCapsule

Protein derived from collagen, used in traditional capsule shells

Microcrystalline CelluloseBinder

Plant-derived cellulose used as a binder and filler in supplements

How to Take It

Take it anytime

Take with food. The gap between an effective dose and too much is narrow — don't stack several selenium sources.

With food

On the label

Adults: take one capsule daily at mealtime.

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

Price Check

$8.08

$10$20$50

Cheaper than 93% of 638 calcium supplements

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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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