Isotretinoin
Notable concerns
INCI · IsotretinoinCAS 4759-48-2
Also known as: 13-cis-Retinoic Acid · Accutane
Conditioning
In plain language
An isomer of retinoic acid, primarily taken orally (as Accutane) to cure severe nodular acne, though occasionally formulated topically.
Oral administration causes severe birth defects; highly monitored globally.
Where it can be sold
Simplified regulatory status by market — for guidance, not compliance advice.
European UnionRestricted
Prescription only; banned in cosmetics.