⚠️Medical Deferral Notice
Commonly advised against during pregnancy. Confirm anything medical with your doctor. Cosmetic classifications are formulation flags to discuss with your healthcare provider, not medical clearance.
Clinical Summary
A potent skin lightener that carries unusually high systemic absorption (up to 45%) through the cutaneous barrier.
Pharmacological Mechanism & Teratogenic Context
Unlike most topical cosmetics, hydroquinone demonstrates substantial transdermal bio-availability (approaching 35% to 45% absorption following topical application). Because substantial amounts enter maternal systemic circulation, obstetric and dermatological guidelines advise strict avoidance during pregnancy and lactation.
Common INCI Names on Packaging
HydroquinoneArbutin (derivative)
Permitted Alternatives During Pregnancy
- ✓Vitamin C (L-Ascorbic Acid)
- ✓Niacinamide (Vitamin B3)
- ✓Azelaic Acid (suppresses abnormal melanogenesis)