BioStacks
Life Extension

Thyroid Support Complex

2 Capsules · 30 servings · $0.88/serving

iHerbAmazon

Best for

Stress & MoodHormones

Ingredients (6)

Iodine

100%

Dose

350 mcg

Target

150–500 mcg

Form

Premium

Sensoril Ashwagandha extract (root, leaf)

100%

Dose

500 mg

Target

125–500 mg

Form

Premium

GS15-4 Fermented Korean ginseng extract (root)

100%

Dose

200 mg

Target

200–400 mg

Form

—

Vitamin B12

80%

Dose

200 mcg

Target

250–5000 mcg

Form

Premium

Vitamin A

43%

Dose

300 mcg RAE

Target

700–1500 mcg

Form

Standard

Other Ingredients (8)

MaltodextrinBinder

Spikes blood sugar faster than table sugar (glycemic index 85–105). Research links it to gut bacteria changes that may promote intestinal inflammation (Nickerson et al. 2015). Used as a cheap filler — adds nothing beneficial.

Silicon DioxideAnti-caking

Fine silica powder used to prevent clumping

Vegetable StearateLubricant

A plant-derived salt of stearic acid (typically magnesium or calcium) used as a tablet lubricant

Dicalcium PhosphateBinder

Calcium and phosphorus compound used as binder

StarchBinder

Carbohydrate polymer used as a binder, filler, and disintegrant in tablets and capsules

Gum AcaciaBinder

Natural plant gum (acacia) used as a binder, stabilizer, and emulsifier in foods and supplements

Microcrystalline CelluloseBinder

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

Microcrystalline CelluloseBinder

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

How to Take It

Best taken in the evening

The Ashwagandha in it is what pulls this toward the evening. Take it with a meal containing fat — the vitamin A in it absorbs poorly without one.

With a meal containing fat

Tyrosine does better on an empty stomach, but something else in this bottle needs food. Taking the whole product with a meal is the better trade — an upset stomach is why most people stop.

Keep it away from protein-heavy meals

On the label

Take one (1) capsule twice daily, preferably early in the day, or as recommended by a healthcare practitioner. Caution If you have a thyroid condition or are taking antithyroid medications, do not use without consulting your healthcare practitioner.

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

Price Check

$26.25

$20$50$100

Cheaper than 67% of 90 stress & mood supplements

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Sources & Scoring

Nutrient data (RDA, UL, and safety thresholds) sourced from the NIH Office of Dietary Supplements and the 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. studied 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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