The Stack Audit

Grade the stack you already take.

Select what's on your current labels — any brand — and get a report card graded to the same conservative standard as everything else we publish: 42 ingredients, published human research, studied doses, and the ones we graded out. Free, on the page, no email required.

Select what's in your current stack — any supplement label, any brand.

Every audit also adds one anonymous data point to The Stack Report — the aggregate picture of what real stacks look like. Want to browse instead? The Evidence Explorer lets you filter and compare the full library, and The Evidence Standard explains exactly how grades are earned — and lost.