EVIDENCE-BASED SUPPLEMENT SCORING
9.3/10
TOP TIER

Confidence: 80%

THORNE - Zinc Bisglycinate 15 mg - Highly Absorbable Zinc Supplement - Supports Immune System, Eye, Skin & Reproductive Health* - Third-Party Certified - Gluten, Dairy & Soy-Free - 60 Capsules

THORNE - Zinc Bisglycinate 15 mg - Highly Absorbable Zinc Supplement - Supports Immune System, Eye, Skin & Reproductive Health* - Third-Party Certified - Gluten, Dairy & Soy-Free - 60 Capsules

B08BTK4494

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Decision summary

CONSIDERTOP TIER

A strong option overall. Its main value comes from evidence quality, but the listed weaknesses are still worth checking…

Best for

People prioritizing high absorption and overall formula quality.

Consider another option if

You care a lot about label clarity and want fewer unknowns.

Score breakdown

Tap a module to see what it measures. A 0 can reflect missing disclosure, not just a negative result.

Dosage quality

9.3/10

Strong dosing for the intended goal

Checks whether labeled ingredient amounts fall within clinically studied ranges (not just regulatory minimums). Low/0 can reflect under-dosing or missing amounts (e.g., proprietary blends).

Score summary

Zinc: dose within clinically studied range (evidence A). The main limitation is that serving size or servings_per_container missing (-2).

Strengths

Zinc: dose within clinically studied range (evidence A)
Zinc: high-bioavailability form declared (Zinc Bisglycinate)

Weaknesses

Serving size or servings_per_container missing (-2)
Product name or brand not detected (-1)

Final verdict

A strong option overall. Its main value comes from evidence quality, but the listed weaknesses are still worth checking before buying.

Ingredient Analysis & Evidence

A closer look at the main ingredients, how they influence the score, and the supporting evidence when available. Tap any ingredient to expand.

✔ Clinically effective dose with strong supporting evidence

A clear strength: Dose is strong and within effective ranges. The declared form supports strong absorption.

Scientific evidence

Meta-analysis

Singh & Das Cochrane review zinc for common cold

Cochrane Database of Systematic Reviews • 2011

PMID: 22553186.0

RCT

Prasad et al. RCT zinc supplementation and testosterone in elderly men

Nutrition • 1996

PMID: 8875519.0

THORNE - Zinc Bisglycinate 15 mg - Highly Absorbable Zinc Supplement - Supports Immune System, Eye, Skin & Reproductive Health* - Third-Party Certified - Gluten, Dairy & Soy-Free - 60 Capsules

THORNE - Zinc Bisglycinate 15 mg - Highly Absorbable Zinc Supplement - Supports Immune System, Eye, Skin & Reproductive Health* - Third-Party Certified - Gluten, Dairy & Soy-Free - 60 Capsules

Warnings & notes

Important label or formulation details that may affect how this product should be interpreted.

i

Some label details are missing or unclear

Incomplete disclosure makes the product harder to evaluate confidently.

Info

There is a formulation caveat worth noting

Product name or brand not detected (-1)

Note

Methodology

Read our methodology overview to understand how SuppScoreLab combines multiple scientific dimensions into one practical score.

View methodology →

This evaluation is based on the product label and declared Supplement Facts available at review time. It does not verify laboratory-tested composition, purity, or batch-level quality. This content is educational and not medical advice. Consult a qualified healthcare professional for personal health decisions. Affiliate disclosure: SuppScoreLab may earn a commission from qualifying Amazon links.

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