Ingredient Guides4 min read
Kojic Acid: Notifying a Brightening Active Within the Rules
Kojic acid's INCI, CAS, stability quirks, and the claim language that keeps a brightening product a cosmetic, not a drug.
May 17, 2026Read
Tagged brightening
Prohibited & Restricted4 min read
Kojic Acid on the Hotlist: Limit and Conditions
Kojic acid is restricted, not banned, on Canada's Hotlist. What the concentration limit means for brightening formulas and how to file around it.
January 23, 2026Read