BioStacks
GNC

Selenium 200 mcg

1 Caplet · 200 servings · $0.07/serving

iHerbAmazon

Best for

Hormones

Ingredients (2)

Selenium

100%

Dose

200 mcg

Target

100–200 mcg

Form

Standard

Calcium

35 mg

Trace amount — not scored

Other Ingredients (12)

MonoglyceridesEmulsifier

Glycerol monoesters of fatty acids used as emulsifiers and processing lubricants

Magnesium StearateLubricant

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

Oleic AcidEmollient

A monounsaturated fatty acid used as an emollient and penetration aid

Polyethylene Glycol (Coating)Coating

A polyether polymer used as a tablet coating and plasticizer

Silicon DioxideAnti-caking

Fine silica powder used to prevent clumping

Carnauba WaxCoating

Hard plant wax from the carnauba palm used to glaze gummies and tablets

Croscarmellose SodiumDisintegrant

Cross-linked cellulose derivative used as a superdisintegrant

Dicalcium PhosphateBinder

Calcium and phosphorus compound used as binder

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

As a dietary supplement, take one caplet daily.

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

Price Check

$14.99

$5$10$20$50

Near the median of 79 selenium 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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