Luxiface Ingredient Intelligence

AHA

AHAs are water-soluble exfoliating acids used to improve the look of rough texture, dullness and uneven tone.

Also known as: Alpha Hydroxy Acids

Exfoliation Evidence: Established

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Ingredient overview

What is AHA?

Alpha hydroxy acids, or AHAs, are water-soluble acids used to loosen cohesion between surface corneocytes and increase exfoliation. Common cosmetic AHAs include glycolic, lactic and mandelic acid, but each differs in molecular size, penetration and supporting properties.

AHAs can improve the appearance of rough texture, dullness and uneven tone when appropriately formulated. Benefits and irritation depend heavily on acid type, free-acid concentration, pH, frequency and the rest of the routine, so a simple 'contains AHA' label says relatively little about strength.

At a glance

Why it is used

ExfoliationTexture smoothingBrightening

Often chosen for

Common concerns

TextureDullnessUneven tone

Skin types

DryNormalOilyCombination

Routine role

ExfoliationTexture careBrightening

Routine guidance

How to use it

AHA frequency depends on strength and format. Start less often with leave-on exfoliants and increase only if skin remains comfortable. Use sunscreen consistently.

Pairing guidance

Routine compatibility

AHAs can be used with hydrating and barrier-support ingredients. Combining strong AHA, retinoid and other exfoliating treatments in one routine can increase irritation.

Formula context matters

Good to know

AHAs can sting, dry or irritate skin and can increase sun sensitivity. Strong peels require more caution than low-strength daily formulas.

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Relevant Luxiface routines

See complete routines where this ingredient fits alongside compatible steps.

Korean Dry and Flaky Scalp Starter Trio$47.30View routine →

Korean Gentle Body Dryness and Barrier Routine$75.24View routine →

Korean Makeup Prep Routine for Smooth, Non-Cakey Base$104.80View routine →

Korean Smooth Body Barrier Routine with Bakuchiol & SPF$67.50View routine →

Korean Advanced Brightening Essential Trio$65.99View routine →

Korean Dehydration and Texture Support Trio$65.60View routine →

Keep exploring

Related ingredients

Glycolic Acid Lactic Acid Mandelic Acid PHA

Ingredient information is educational. Product suitability depends on the complete formulation, concentration, how it is used and your individual skin.

Sources & further reading

These references support the ingredient overview. Performance and suitability still depend on the finished product, concentration and how it is used.

AHA