Protein Powder Comparison, Without the Marketing Noise.

Purity is protein per serving divided by serving size, as printed on the label: a 30 g scoop delivering 27 g of protein is 90% pure. That single number sets the tier — A+ at 88% and above, A from 75% to 87%, B from 60% to 74%, C below 60%. It is arithmetic on the nutrition panel, applied identically to every product, with no editorial adjustment. The full method, including what the score deliberately ignores, is published at /purity-tiers.

No. We do not accept sponsorships, paid placements or brand-edited listings, and no brand can buy a tier or a position. We do earn a commission when you buy through some links on this site, and it changes nothing about the arithmetic — the formula never sees it. If a product we would rather not recommend calculates to an A+, it gets an A+.

Product records are refreshed in batches from brand and marketplace listings rather than on a fixed schedule, so a listing can lag the newest pack — brands reformulate and repackage without notice. Treat our figures as the basis for a comparison, and confirm the physical label before you buy.

No, and we will not claim otherwise: we are a data platform, not a laboratory, and we do not commission our own testing. What we do hold is FSSAI licence data on roughly 4,500 of our 8,000 products, shown on the product itself. Where a field is blank we say so rather than marking the product as failing.

Quite a lot, and that matters more than the score itself. Purity cannot detect amino spiking, because free-form glycine, taurine and BCAAs register as protein in the label figure. It says nothing about amino acid profile, absorption, heavy metals, taste or mixability, and it does not apply at all to creatine, pre-workout, omega-3 or multivitamins, which we compare on dose per serving and cost instead.