Mandelic Acid

Mandelic acid is an aromatic alpha hydroxy acid (AHA) derived from bitter almonds. Known for its gentle exfoliating, antibacterial, and brightening effects, it’s ideal for sensitive and darker skin types compared to stronger AHAs like glycolic acid.

INCI Name:

Mandelic Acid

CAS Number:

90-64-2

Solubility:

Soluble in alcohols and moderately soluble in water

Key Properties

• Gentle Exfoliant: Removes dead skin cells and promotes renewal.

• Brightening: Fades dark spots, post-acne marks, and pigmentation.

• Antibacterial: Targets acne-causing bacteria (Propionibacterium acnes).

• Anti-Aging: Improves texture, fine lines, and overall skin tone.

• Oil Control: Balances sebum production.

Common Uses

Skincare Formulations:

• Chemical peels (professional & at-home)

• Exfoliating toners and serums

• Brightening or acne treatment products

Dermatological Applications:

• Treats acne, hyperpigmentation, melasma, and photoaged skin

 pH Considerations

• Works best at pH 3.0–4.0

• Exfoliating activity decreases at higher pH

• Use pH adjusters (e.g., triethanolamine) to stabilize formulations

Compatibility

• Works well with niacinamide, hyaluronic acid, azelaic acid, and kojic acid

• Avoid combining with strong acids or retinoids in the same formula unless professionally balanced

 Safety and Handling

• Perform a patch test before use

• Avoid during pregnancy or breastfeeding unless advised by a professional

• Always use broad-spectrum sunscreen — AHAs increase sun sensitivity

 Storage

Store in a cool, dry place, tightly sealed, and away from direct sunlight.