How We Evaluate
Label Lab is label and certification analysis, not lab testing and not health advice: we read Supplement Facts panels, FDA dietary supplement labeling regulations, and certification programs' own published standards and public databases. We do arithmetic on cost and protein content, explain what label terms and certification marks actually mean, and never make a health, efficacy, treatment, or dosage claim.
What "label and certification analysis" means
- Supplement Facts panels — the FDA-mandated table of protein, serving size, and other dietary-ingredient amounts, read directly from manufacturer-published labels.
- Ingredient lists — descending-order-by-weight ingredient disclosure, including where proprietary/protein blends group ingredients without individual amounts.
- Certification programs' own standards — NSF Certified for Sport, Informed Sport (LGC), and USP Verified each publish what their program tests; we report that scope and point to each program's public verification database rather than trusting a logo alone.
- FDA labeling regulations — 21 CFR 101 (nutrition labeling) and 21 CFR 111 (current good manufacturing practice for dietary supplements) govern what terms like "GMP," serving size, and blend disclosure legally require.
Why we lead with the label term, not the marketing claim
The supplement category is full of content that repeats "certified" or "high protein" without naming what's actually certified or how the protein number was calculated. We compete where the answer is a citable label fact those pages skip: the amino-spiking nitrogen-test mechanism, the isolate-vs-concentrate weight-percentage distinction, the proprietary-blend disclosure rule, and exactly what each certification program tests versus a bare "GMP" claim.
Our compliance, honesty, and safety rules
- No prices, ever — we link to a live Amazon search and use price BANDS only for value-math examples.
- No star ratings or review counts — per Amazon's Operating Agreement.
- Label facts, never health claims — we state what a label or certification program says, never that a product boosts, cures, treats, or improves any condition, and we give no dosage advice.
- Certification claims verified against the certifier's own database where possible, not assumed from a package logo.
- Affiliate disclosure — as an Amazon Associate we earn from qualifying purchases, at no extra cost to you.
Methodology FAQ
No. We don't buy or lab-test products. Every page is a research-based analysis built from FDA dietary supplement labeling regulations (21 CFR 101, 111), certification programs' own published standards and public databases (NSF, Informed Sport/LGC, USP), and manufacturer-published Supplement Facts panels. We say this plainly so you can weigh our content accordingly.
Prices change constantly and Amazon's own page is the only reliable source at the moment you buy. We link to a live Amazon search for each product instead, and describe cost only as an approximate price BAND for our value-math examples. Amazon's Operating Agreement also restricts how affiliates display pricing.
We don't display them. Amazon's Operating Agreement restricts how Associates present ratings and review data.
No, never. We report label facts — what a Supplement Facts panel, ingredient list, or certification program states — and do arithmetic on cost and protein content. We do not claim any product boosts, cures, treats, or improves any condition, and we give no dosage advice. For guidance specific to you, consult a physician, registered dietitian, or other qualified professional.
Every claim on this site traces to a specific label element (a Supplement Facts line, an ingredient-list position, a front-of-package term) or a certification program's own published scope — not to a health outcome we are asserting.