How often should you exfoliate your face? By skin type and acid

For most faces, once or twice a week is the right place to start, which is what Cleveland Clinic suggests. Oily skin can usually go a bit more often, and dry or sensitive skin less. When you’re choosing between products, the AAD’s rule is the one to remember: the harsher the exfoliant, the fewer times a week you need it.

The tricky part is counting. Plenty of products exfoliate without saying so on the front: a salicylic acid acne wash, a glycolic toner, a peel pad, and a retinoid too, since Cleveland Clinic counts retinol as a chemical exfoliant. Two of those on the same night is already a lot.

How often should you exfoliate, by skin type?

Using a retinoid or benzoyl peroxide? Exfoliate on different nights, or not at all while you’re starting it. The AAD warns that exfoliating on top of retinoids, retinol or benzoyl peroxide can make dry skin worse or even trigger breakouts.

AHA vs BHA vs PHA: which acid should you use?

PHAs are the third family, and the one to know if your skin is dry or reacts easily. Gluconolactone is the most common. A 2010 review describes PHAs as working much like AHAs with less irritation, which makes one a good first acid.

Strength matters more than the acid’s name. That same review puts everyday creams and lotions at about 4% to 10%, and anything above 20% in peel territory. For AHAs in products you use at home, the US Cosmetic Ingredient Review panel recommends under 10%, at a pH of 3.5 or higher. So a 30% bottle on a bathroom shelf is a peel, whatever the label calls it.

Enzyme exfoliants use proteins from fruit, like papain from papaya and bromelain from pineapple, to loosen dead cells. They’re often sold as the mildest option, but a 2022 review found only 11 published papers on enzyme exfoliation, few of them clinical trials, so there isn’t much data either way. Scrubs work by friction. The AAD’s advice is small circles for about 30 seconds, lukewarm water, and moisturizer straight after.

Signs of over-exfoliation, and what to do

The signs are easy to miss at first: redness that hasn’t faded by the next morning, stinging when you put on a plain moisturizer, rough, cracked or raw-feeling patches, and new breakouts after adding an exfoliant on top of a retinoid or benzoyl peroxide.

The fix is boring. Stop every exfoliant, retinoids included, and keep to a mild cleanser, a plain moisturizer and sunscreen until your skin feels normal again. Then bring back one exfoliant, less often than before. If you were using an acid toner and a peel pad, pick one. Stinging that hasn’t eased after a couple of weeks of that is a reason to see a dermatologist.

Peel pads, glass skin and at-home peels: what’s worth it?

Peel pads are pre-soaked acid in a jar, and they’re fine as long as you count them as your exfoliating night rather than a daily wipe. “Glass skin” routines are where the counting goes wrong. They layer a lot of steps, and if an acid toner, an exfoliating essence and a peel pad are all in the lineup, that’s three exfoliants before you’ve reached your serum. The smooth, dewy look people are after mostly comes from the hydrating layers, not the acids, so keep those and let one exfoliant stay. The actives episode has what a 2026 dermatology congress found about people stacking actives from social media.

Then there are the strong acid bottles sold for home peels. In July 2024 the FDA warned people not to buy or use chemical peels without professional supervision, because they can cause severe chemical burns, swelling, infection, skin color changes and scarring. It named products like 70% glycolic acid, 80% salicylic acid and 50% and 100% TCA, and pointed out that it hasn’t approved any chemical peel product. How deep a peel goes depends on its strength, how many layers go on and how long it stays there, which is hard to judge on your own face. Verdict: pads, yes, counted as a night. Glass skin, yes, with one exfoliant in it. Strong peels belong in a clinic.

Do exfoliating acids make you sensitive to the sun?

Some do. In a small study, 10% glycolic acid made skin more sensitive to UV, while 2% salicylic acid didn’t. The review called the effect small, and it wore off within a week of stopping. Small still counts on a bright day, so wear sunscreen every morning while you’re on an AHA, and keep an eye on the UV. Nubia’s Today has the UV for where you are, so a sunny week won’t sneak up on you.

Safety note: Still red, raw or stinging after a break from exfoliants, or blisters or a burn after a peel? See a dermatologist. And never exfoliate cuts, wounds or sunburn.