Mandelic Acid Is the Exfoliator for Everyone Who Hates Exfoliators

Get a glow without the burn.

mandelic acid
(Image credit: Future)

I’ve learned the hard way that not all exfoliating acids are created equal. There was a time when my bathroom shelf looked like a chemistry lab—glycolic, salicylic, lactic acids in varying formulas—each promising clearer, brighter skin. And while some absolutely delivered, they also occasionally delivered something else: irritation. That’s exactly when mandelic acid entered my routine and quickly became one of my favorite skincare ingredients.

Here's the gist: Mandelic acid is a chemical exfoliant under the alpha hydroxy acid (AHA) class derived from bitter almonds, but what makes it special is its molecular size. Compared with other AHAs like glycolic acid, its molecules are larger, which means it penetrates the skin much more slowly. This means that you still get the exfoliating benefits (hi, smoother texture, clearer pores, and a brighter tone), but with a gentler touch. Dermatologists get behind it for acne-prone or sensitive skin because it helps unclog pores by sloughing off dead skin cells and gunk, and fades post-breakout marks, with results on par with stronger acids.

Another reason it's one of the biggest buzzwords right now? Mandelic acid multitasks. With just one ingredient, texture is refined, hyperpigmentation is tackled, and pores inevitably look smaller over time. It's also less likely to cause post-inflammatory hyperpigmentation (i.e., dark spots) in people with deeper skin tones than other AHAs. Recently, it’s been popping up in new launches—like the mandelic-focused serum from Alix Earle’s new brand, Reale Actives—which only reinforces how much hype the ingredient has.

In other words, if you want the glow-boosting perks of an exfoliating acid without feeling like your skin barrier is suffering, mandelic acid is a very good place to start.

Smoother-Skin Serums

Serums are one of the easiest ways to incorporate mandelic acid into your routine because they tend to deliver a concentrated dose of the ingredient—think like a shot vs. a cocktail. My favorite mandelic acid serums help gently sweep away dead skin cells while contributing to clearer-looking pores and brighter tone over time.

Swipe-and-Glow Toners

If you prefer your exfoliation in lighter layers, a toner can be a great entry point to the ingredient for you. These formulas usually pair the acid with hydrating ingredients, so you get a subtle resurfacing effect each time you swipe it on.

Underarm Reset

Suprise! Mandelic acid in deodorant is very much a thing, and it actually makes a lot of sense. Instead of simply masking odor, the acid helps create an environment where odor-causing bacteria are less likely to thrive. Also, because they're exfoliants, these formulas help gently smooth and brighten the underarms over time.

In-the-Shower Exfoliants

Body care has officially entered its “actives era,” and mandelic acid body washes bring that ethos front and center. In cleanser form, the ingredient helps gently exfoliate areas prone to rough texture or breakouts—think back, shoulders, and chest. Used regularly, these washes can help smooth bumps, refine texture, and leave skin looking brighter from neck to toe.

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Siena Gagliano
Beauty Editor

Siena Gagliano is the Beauty Editor at Marie Claire, where she writes and edits reported features, trend stories, and expert-backed shopping roundups. Before joining the team full-time, she was an editor at Cosmopolitan, where she specialized in SEO-first beauty content and commerce strategy. Her bylines have also appeared in Allure, ELLE, Bustle, Well+Good, Popsugar, and Women's Health, covering everything from the best products for brighter, glowier skin to the science behind face mapping. Curious about the behind-the-scenes magazine life and her go-to beauty picks? Follow her on Instagram at @sienagagliano.