Beauty Encyclopedia›Mandelic Acid

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Mandelic Acid

Also known as: AHA, Almond acid

Generally SafeAHAEWG: 2-4

A gentle, large-molecule AHA that exfoliates superficially with additional antibacterial benefits.

How it works

Mandelic acid has a larger molecular weight than glycolic or lactic acid, resulting in slower absorption and gentler exfoliation. It has demonstrated antibacterial properties against P. acnes and mild melanin-inhibiting activity. Its gentleness makes it particularly suitable for darker skin tones where other AHAs can trigger post-inflammatory hyperpigmentation.

Concentration note

Typically 5–10%.

Best for

Sensitive skinDarker skin tonesAcne-prone skinAHA beginners

Commonly found in

Gentle chemical exfoliantsAcne treatments

✅ Pairs well with

NiacinamideHyaluronic AcidCeramide NP

⚠️ Avoid combining with

Retinol

Safety & restrictions

One of the safest AHAs. Increases photosensitivity — use SPF. Very low irritation potential.

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For informational purposes only. Not medical advice. Consult a dermatologist for personalised guidance.