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How Do I Use a Retinoid and AHAs/BHAs Together?

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Using retinoids and an AHA (e.g. glycolic acid) or BHA (e.g. salicylic acid) actually diminishes the effectiveness of both ingredients. So how can you benefit from the potential anti-aging effects of each ingredient? To find the answer, I consulted with the site of Dr. Leslie Baumann, M.D., a practicing dermatologist and the co-founder and chief of the Cosmetic Dermatology department at the University of Miami School of Medicine. According to Dr. Baumann:

“Your question about order is a great one. Retinoids should not be mixed with BHA (i.e., salicylic acid) or AHA (i.e,. glycolic acid) because the BHA and AHA can inactivate the retinoid. Always use retinoids at night because the sun can also make the retinoid less effective.”

Dr. Baumann suggested as skin care routine using AHA/BHA products exclusively in the morning under a broad-spectrum UVA/UVB sunscreen, and retinoids exclusively at night.

Of course, as would be expected from Dr. Baumann, this makes perfect sense.

[Read more: Can You Really Use Retinoids with AHA, BHA, and L-ascorbic Acid or Not?]

Daytime AHA/BHA Products

Since AHA/BHA make your skin more sensitive to the sun, and so more susceptible to UV damage, you should always use AHA/BHA under a broad-spectrum UVA/UVB sunscreen with an SPF of at least 30. You should reapply it frequently and, if you can manage it, avoid the sun between 10 a.m. and 4 p.m.

These are some AHA or BHA products I like:

MD_formulations

MD Formulations Daily Peel Pads (with 10% of the AHA glycolic acid, $49.50, Amazon.com)

dermadoctor_aint_misbehavin

DermaDoctor Ain’t Misbehavin’ AHA/BHA Acne Cleanser ($25, Amazon.com)

paulas_choice

Paula’s Choice Exfoliating 2% BHA Lotion ($33.95, Amazon.com)

[RELATED: Spotlight On: Alpha-Hydroxy Acids]

Nighttime Retinol Products

Some nighttime retinol products that I like from lowest concentration to highest:

[Read More: 11 Things That You Never Knew about Retinol and Retinoids – Until Now]

neutrogena_wrinkle

Neutrogena Healthy Skin Night Cream (with a 0.025 concentration of retinol, $13.99, Amazon.com)

afirm_2x

Afirm 2x (with a 0.3 concentration of retinol, $58.86, Amazon.com)

FutureDerm_Retinol

FutureDerm Time-Release Retinol 0.5 (with a 0.5 concentration of retinol, $54.95, shop.futurederm.com)

green_cream_level_6

Green Cream Level 6 (with a 0.6 concentration retinol, $44.65, Amazon.com)

skinceuticals_1.0

Skinceuticals Retinol 1.0 (with a 1.0 concentration of retinol, $60.00, Amazon.com)

Remember, the higher the concentration of retinol, the higher the risk of skin irritation. Studies show that 0.5 is the ideal concentration to start at for minimum irritation with maximum benefits. Start with a small application every two to three nights, and slowly work up a tolerance so that you may use it nightly. Ask you develop a tolerance, you can use higher concentrations of retinol. Most importantly, remember that it’s always best to consult your dermatologist before you start using any new product or ingredient.

[RELATED: What is Retinol Metabolism?]

Bottom Line

Using retinoids and AHA/BHA products at the same time can lower the effectiveness of both ingredients. But if you use them at separate times during your routine — AHA/BHA in the morning and retinoids at night — you can get the benefits of both without decreasing the effectiveness of either.

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Accredited in [easyazon_link identifier=”0553383302″ locale=”US” tag=”cosmeticswiki-20″]The Skin Type Solution[/easyazon_link] by one of my idols, Dr. Leslie Baumann (director, Division of Cosmetic Dermatology and Assistant Professor of

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Nicki Zevola is the founder and editor-in-chief of FutureDerm.com. Named one of the top 30 beauty bloggers in the world by Konector.com since 2009, Nicki

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