Common side effects
Hydroquinone bleaches the skin by reducing the accumulation of skin pigment called melanin that causes darkening of skin. It interferes with the synthesis of melanin and hampers important processes within cells that produce melanin (melanocytes). The bleaching effect of hydroquinone is reversible (reversible depigmentation)..
Mometasone topical is a topical corticosteroid (anti-inflammatory medicine). It works by reducing redness, itching, and swelling caused by various skin conditions.
Tretinoin topical works by slowing the production of certain natural substances that can cause acne.