BioStacks
ZHOU

Zinc Defender

1 Capsule · 60 servings · $0.18/serving

iHerbAmazon

Best for

Immune

Ingredients (2)

Zinc

100%

Dose

30 mg

Target

15–30 mg

Form

Standard

Vitamin B6

80%

Dose

20 mg

Target

25–100 mg

Form

Premium

Other Ingredients (5)

KelpFood

Dried brown seaweed used as a whole-food source of iodine and trace minerals.

Magnesium StearateLubricant

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

Whole Rice ConcentrateFiller

A rice-derived powder used as a natural, whole-food excipient in supplements

Croscarmellose SodiumDisintegrant

Cross-linked cellulose derivative used as a superdisintegrant

Microcrystalline CelluloseBinder

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

How to Take It

Best taken in the morning

Many people prefer B-vitamins earlier in the day; take with food to avoid nausea.

With food
Space it a couple of hours from Iron and Calcium

On the label

Take one (1) capsule daily. Use only as directed.

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

Price Check

$10.99

$10$20$50

Cheaper than 80% of 187 vitamin B6 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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