Concentration Limits4 min read
Hydroquinone Concentration and Why It Fails as a Cosmetic
Why hydroquinone is prohibited in cosmetics at any concentration, and what skin-brightening actives makers use instead.
June 28, 2026Read
Tagged hydroquinone
Prohibited & Restricted4 min read
Is Hydroquinone Allowed? Its Status on the Hotlist
Where hydroquinone stands on Canada's Hotlist, its concentration conditions, and when a skin lightener becomes a drug.
April 19, 2026Read