Lactic Acid 90%

About

Lactic Acid 90% is a natural L-Lactic acid derived from the fermentation of sugar and carbohydrates. This pharmaceutical-grade ingredient is widely used across cosmetic, skincare and chemical formulations to adjust pH levels and support product stability.

Key Benefits

• Natural fermentation-derived lactic acid at 90% concentration
• Helps balance pH in cosmetic and skincare formulations
• Pharmaceutical grade — complies with EP, BP, JP and USP standards
• Soluble in water, alcohol and glycerol for easy blending
• Versatile for use across cosmetics, pharmaceuticals and chemical applications
• Stable, clear liquid format for consistent formulation

Common Uses

• pH adjustment in skincare serums, tonics and exfoliating products
• Preservative support in cosmetic formulations
• Ingredient in gentle chemical exfoliants and peels
• Formulation stabiliser in creams and lotions

How to Use

• Always dilute before use — do not apply concentrated acid directly to skin
• Typical usage rate: 1–5% in finished formulations, depending on desired pH and application
• Mix thoroughly into formulations to ensure even distribution and stability
• Test pH levels during formulation to achieve desired results

Product Details

• INCI Name: Lactic Acid
• CAS Number: 79-33-4
• Composition: Lactic Acid (90%), Water
• Appearance: Clear liquid
• Solubility: Water, alcohol and glycerol
• Grade: Pharmaceutical grade — EP, BP, JP and USP compliant
• Molecular Weight: 90

Safety

• Must be diluted before use — do not apply concentrated acid directly to skin due to its strongly acidic nature and burn risk
• Keep out of reach of children
• Follow standard safety protocols when handling concentrated acids