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Ingredient guide
mandelic acid
In short
Mandelic acid is an AHA that exfoliates more gradually thanks to its larger molecular size. It helps refine texture, reduce visible discoloration, and is often preferred by reactive or redness‑prone skin.
Reviewed against published evidence · editorially independent · no brand pays for placement
Works for
Texture · Tone · Redness
Skin type
Sensitive · Dry · Oily · Combination
Best used
Evening
What it is
C8 alpha-hydroxy acid from bitter almond; larger molecular weight than glycolic acid produces slower transdermal penetration, translating to a more gradual exfoliation onset favoured by reactive and rosacea-prone skin types; keratolytic and melanogenesis-suppressive; controlled evidence supports reduction of post-inflammatory hyperpigmentation and melasma with lower erythema incidence than glycolic acid equivalents; moderate antibacterial activity useful in acne-related texture management.
Also found as
Related
Where to find it
The Ordinary Mandelic Acid 10% + HA
Allies of Skin Mandelic Pigmentation Corrector Night Serum
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Common questions
It gently lifts dull surface cells to improve smoothness and brightness. It can also help reduce the look of post‑blemish marks and uneven tone.
Yes. Its slower absorption often feels milder than glycolic acid, making it a common choice for sensitive or redness‑prone skin.
It’s typically used after cleansing on dry skin. Many people start a few times a week and increase as comfortable.
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Personal guidance only · For clinical concerns, see a dermatologist.