Hydroquinone 3-5%
Kojic Acid 1-2%
Ascorbic acid 0.5-2%
+/- Dexamethasone 0.1% OR Hydrocortisone 1% cream
+/- Salicylic acid 1-2%
+/- Tranexamic acid 5%
in Aqueous Cream OR Tretinoin 0.05%-0.1% OR Propylene Glycol/Alcohol
KLIGMAN’S FORMULA
Hydroquinone 5%
Tretinoin 0.1%
Dexamethasone 0.1%
Ascorbic acid 0.5%
Cream or gel base to 100%
Hydroquinone 4% in Neostrata Skin Brightening gel (2% Kojic Acid, 5% blend of Glycolic Acid, Citric Acid and Lactic Acid and 5% Gluconolactone)