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Highlight any supplement or peptide to see its SelfAssay effectiveness and safety grades, top effects, and side-effects. Shopping for supplements or peptides and wondering what the evidence actually says? Highlight any compound name on any page and SelfAssay shows you an instant evidence card: - An effectiveness grade, computed from thousands of first-hand community reports, broken down by purpose (sleep, focus, recovery, and more) - A separate safety grade based on reported side-effects - The most-reported effects and side-effects for that compound - One click through to the full SelfAssay dossier: cited studies, clinical trials, and community signal How it works: select a compound name (for example "BPC-157" or "ashwagandha"), click the small SelfAssay pill that appears, and the card renders right there on the page. You can also click the toolbar icon and type a compound name. The grades come from SelfAssay's continuously updated index of 540+ compounds, combining classified community reports with curated research data. Grades are decision support for your own research. They are not medical advice, and a dash simply means we do not have enough first-hand data yet - we never fill gaps with guesses.
Jun 24, 2026
rating_count is the Chrome Web Store ratings count, not a written-review count.
Media assets
Screenshots and videos on the listing.
Has promo video
Whether the listing includes at least one video.
Languages
Declared language locales.
Developer website
Listing exposes a developer website URL.
Contact email
Listing exposes a contact email.
Keyword in name
Case-insensitive substring match in the name.
Keyword in description
Case-insensitive substring match in the description.
Keyword occurrences in description
Count of case-insensitive occurrences in the description.
Category user-count percentile
Share of same-category extensions with fewer users (null if unknown).
These are transparent listing completeness / keyword signals, not a prediction of Chrome Web Store search ranking.