Cosmetic Active Ingredients

Lactobionic Acid

CAS No.96-82-2
GradeIndustrial / Pharmaceutical
Availability● In Stock

High-purity lactobionic acid (CAS 96-82-2), a multifunctional cosmetic active with antioxidant, moisturizing, and chelating properties, ideal for premium skincare formulations.

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Product Technical Details

Product Overview

Lactobionic acid is a naturally derived polyhydroxy acid (PHA) formed by the oxidation of lactose, consisting of gluconic acid linked to galactose. Recognized for its gentle yet effective profile, it serves as a biomimetic ingredient originally identified in Caspian yogurt. Unlike more aggressive alpha-hydroxy acids (AHAs), lactobionic acid offers mild exfoliation while delivering superior hydration and skin barrier support, making it highly suitable for sensitive and aging skin types.

Specifications

Molecular Formula	C₁₂H₂₂O₁₂
Molecular Weight	358.30 g/mol
Appearance	White or almost white crystalline powder
Melting Point	113–118 °C (lit.)
pH (1% aqueous solution)	2.3
Water Solubility	10 g/100 mL
Assay	98.54%
Specific Optical Rotation	+24.6°
Heavy Metals	<10 ppm
Microbial Limits	Complies with pharmacopeial standards (E. coli, Salmonella, Pseudomonas aeruginosa: negative)

Industrial Applications

Lactobionic acid is widely utilized in high-end cosmetic and dermatological formulations due to its multifunctional properties:

Moisturization: Acts as a powerful humectant, attracting and retaining moisture in the stratum corneum.
Antioxidant Protection: Chelates pro-oxidant metal ions (e.g., Fe²⁺, Cu²⁺), reducing oxidative stress and supporting skin longevity.
Gentle Exfoliation: Promotes desquamation without compromising skin barrier integrity, ideal for post-procedure or reactive skin.
Stabilizer & Chelator: Enhances product shelf-life by preventing metal-catalyzed degradation of active ingredients.
Acidulant: Provides mild pH adjustment in aqueous systems without irritation.

Its biocompatibility, low toxicity, and compliance with stringent microbial and heavy metal limits make it a preferred choice for clean beauty, medical aesthetics, and nutricosmetic applications. Recommended storage at ≤ -20°C ensures long-term stability and performance consistency.