Best used for treating hyperpigmentation, these products — packed with glycolic acid — promote cellular turnover to remove the top layers of the skin revealing a brighter, fresh complexion, says New York City-based dermatologist Dendy Engelman. "Glycolic acid is the smallest acid in size," she says. (This means it can get deep into the skin.) "It is very effective in breaking down skin cells and removing dead particles," says Engleman. "It boosts collagen production and elastin production with the removal of waste and dead skin cells." Bottom line: By removing these dead cells, healthy, glow-y skin is revealed.
Rouleau also enlightened me about another culprit making my skin care routine less effective: using oil-based products at the beginning of my skin care routine. As Rouleau explained, oils have a large molecule size and, therefore, should go at the end of a skin care routine because it almost acts like a sealant. When you use a cleansing oil or balm first (as I used to do along with makeup wipes), you're basically creating a barrier that makes it more difficult for other skin care products to penetrate and do their job.
THIS TOOL DOES NOT PROVIDE MEDICAL ADVICE. It is intended for general informational purposes only and does not address individual circumstances. It is not a substitute for professional medical advice, diagnosis or treatment and should not be relied on to make decisions about your health. Never ignore professional medical advice in seeking treatment because of something you have read on the WebMD Site. If you think you may have a medical emergency, immediately call your doctor or dial 911.

The best way to fix them: Since they're more closely related to bacteria than your hormones or a lack of exfoliation, papular pustules require a different plan of attack entirely. "Inflammatory acne types really respond to antibiotics, either topical or systemic," says Dr. Hale. These, of course, require a trip to your dermatologist. To tide you over, you could also try applying hydrocortisone cream, which temporarily takes down redness and swelling. But in the long run, it won't do much to make these disappear completely or keep them from popping up again.
What you can do differently: Gently wash and moisturize your face with a gentle yet effective system (cleanser, toner, moisturizer) that contains pore-clearing ingredients, like alpha hydroxy acids and glycolic and lactic acids. That way you keep the scrubbing to a minimum. Wright recommends Obagi Foaming Gel, Toner and Exfoderm Lotion, her favorite system to suggest for Dangene's acne-prone clients.
In dermatology, PDT with the photosensitizer Levulan Kerastick (20% delta-aminolevulinic acid HCl) is used for the treatment of very early, thin skin cancers called actinic keratoses (AK). The initial approval was specifically for the treatment of actinic keratosis of the face and scalp with a combination of an application of the photosensitizer followed by a timed exposure to a special blue light source. PDT is also used for acne, rosacea, skin cancer, sun damage, cosmetic skin improvement, oily skin, enlarged sebaceous glands, wrinkles, rejuvenation (anti-aging), warts, hidradenitis suppurativa, psoriasis, and many other skin conditions.
© 2018 Condé Nast. All rights reserved. Use of and/or registration on any portion of this site constitutes acceptance of our User Agreement (updated 5/25/18) and  Privacy Policy and Cookie Statement  (updated 5/25/18). SELF may earn a portion of sales from products that are purchased through our site as part of our Affiliate Partnerships with retailers. Your California Privacy Rights.  The material on this site may not be reproduced, distributed, transmitted, cached or otherwise used, except with the prior written permission of Condé Nast. Ad Choices 
Exfoliating cleansers and masks: A variety of mild scrubs, exfoliants, and masks can be used. These products may contain salicylic acid in a concentration that makes it a very mild peeling agent. These products remove the outer layer of the skin and thus open pores. Products containing glycolic or alpha hydroxy acids are also gentle skin exfoliants.
×