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I would advise against using a product which has expired. The product contains hydroquinones which should definitely not be used after it expires.
It's not the best idea to use a cosmetic product after expiration dates. 1. The concentration and strength of the active ingredients is compromised, and 2. It could actually negatively affect your skin. "This answer has been solicited without seeing this patient and cannot be held as true medical advice, but only opinion. Seek in-person treatment with a trained medical professional for appropriate care."
These are per my office's instructions, but we do change it a bit depending on when and why we used the Cosmelan 1. Nightly, before bed wash your face with a mild soap then apply a thin layer of Cosmelan 2 to the full face or the affected area. DO NOT WASH OFF. Leave on for 15 minutes,...
Cosmelan is a fabulous procedure for reversing facial melasma. The MD version which can only be administered through a doctor's office is not available on line or for purchase to consumers. It takes two treatments three weeks apart to treat the melasma and strict sun avoidance afterwards to a...
Cosmelan has an at home treatment which is not as strong as the MD preparation. The MD preparation which is placed only in a doctor's office has hydoquinone and Retin-A compounded into the preparation. The time left on is followed by guidelines from 5 or more hours depending on skin type. ...
