INCI Names & CAS Numbers4 min read
Naming Star Actives: Niacinamide, Retinol, and Their INCI
Marketing names for hero actives usually match their INCI names, but not always exactly. Here is where the two can quietly diverge.
June 10, 2026Read
Tagged retinol
Ingredient Guides4 min read
Retinol in Canada: Cosmetic Ingredient or Regulated Active
How retinol's INCI name, Hotlist status, and your claim wording decide whether your product stays a cosmetic notification in Canada.
May 29, 2026Read
European Union (CPNP)4 min read
The New EU Concentration Limits for Retinol in Cosmetics
What the Annex III caps on retinol, retinyl acetate, and retinyl palmitate mean for your formula and your label warning.
May 9, 2026Read
Prohibited & Restricted4 min read
Retinol and Vitamin A Derivatives: The Hotlist Ceiling
How Canada's Cosmetic Ingredient Hotlist caps retinol and related vitamin A esters, and why exceeding it can push a product toward drug classification.
May 5, 2026Read
Concentration Limits3 min read
Retinol Percentage and the Cosmetic Versus Drug Line
Where retinol concentration and the claims wrapped around it start pulling a product out of cosmetic territory and into drug classification.
May 2, 2026Read