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Mandelic Acid

INCI: MANDELIC ACID

What is it?

Mandelic acid is a synthetic AHA (alpha hydroxy acid) most often made from benzaldehyde, either by converting it to a cyanide-containing intermediate that's then hydrolyzed, or through a newer, cyanide-free process. Cosmetic-grade material is almost always the racemic (mixed) form rather than a single, purified vers...

How is it used?

Add it to the water phase. It dissolves with a little heat if needed. Target a finished pH around 3 to 4, following general AHA pH logic since there's no mandelic-acid-specific number to work from.

Forms

Available forms and grades affect how this ingredient behaves and how it should be selected for a formula.

Appearance

Color, texture, and physical characteristics can vary between suppliers and product grades.

Usage rate

Recommended incorporation levels depend on product type, supplier guidance, and the intended result.

Why we use it

Formulators choose this ingredient for specific performance, sensory, and stability benefits.

Strengths and limitations

Its advantages, compatibility considerations, and practical tradeoffs should be weighed during development.

Alternatives and substitutions

Possible replacements depend on the ingredient's role, desired skin feel, and formulation system.

Storage and shelf life

Appropriate storage conditions help protect quality and performance throughout the ingredient's usable life.

Mandelic Acid

What is it?

How is it used?

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