A science-based directory of skincare ingredient safety — dose first, hazard second.
Most ingredient-safety tools rate hazard in isolation. We rate safety in context — the concentration, the product type, the authorities that have actually reviewed it, and the manufacturing byproducts they checked for. Then we show you exactly where every sentence came from.
Every claim on this site is tied to a dated primary source — a CIR monograph, a CosIng entry, a peer-reviewed paper with a page reference. No 1-to-10 scores. No verified-seal partnerships. No hand-waving about “chemicals.”
If the underlying literature doesn't support a verdict, the page says so — and names what would change the answer.
Grouped by function. Each entry links to a full packet — verdict, regulatory status, known concerns and benefits, and the sources we used to write them up.