Retinol is a complex ingredient. It tends to not play nicely with other ingredients, which can either exacerbate peeling/redness or counteract the benefits. You'll find lots of helpful information online, but when in doubt ask your dermatologist.

"Make sure you let your dermatologist know all the products you use, including scrubs, exfoliating pads, toners, moisturizers, and cleansers, particularly those made with alpha hydroxy and beta hydroxy acids and benzoyl peroxide. Some of these products make it challenging to use topical retinoids to their full capacity, and so you never get the full benefits of the topical treatment," says Dr. Sodha. "Your dermatologist can help you coordinate your regimen to take advantage of what you have at home and how to incorporate a retinoid into your skin care regimen."

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Whether you're using retinol for its anti-aging or acne-fighting benefits, Dr. Sodha notes that it can sometimes take up to 12 weeks before you see positive results. Also, the "purging" process is a major deterrent for people, which causes them to cease usage. Then, when they apply a retinol product again, they have to go re-visit the acclamation phase.

"Stay in communication with your dermatologist if you are having issues, because this is one of the best treatments we have for acne [and anti-aging]," says Dr. Sodha. "We want to work with you to find a way to make it part of your regimen. If it doesn't suit you, we can always go back to the drawing board."

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