Sodium Lactate 60%

Sodium Lactate 60% Solution is a clear, colorless to pale yellow aqueous solution of sodium lactate, widely used in cosmetic, personal care, pharmaceutical, and soap formulations. It is valued for its strong humectant properties, excellent moisture retention, and ability to function as a pH buffer and skin-conditioning agent.

Derived from lactic acid (typically via fermentation of sugars), sodium lactate is part of the skin’s Natural Moisturizing Factor (NMF), which makes it highly compatible with skin and effective at maintaining hydration.

Chemical & Identification Details

• INCI Name: Sodium Lactate

• CAS Number: 72-17-3

• Chemical Formula: C₃H₅NaO₃

• Molecular Weight: 112.06 g/mol

• Concentration: 60% active sodium lactate in water

Physical Properties

• Appearance: Clear to slightly yellow liquid

• Odor: Mild, characteristic

• Solubility: Completely soluble in water

• pH (10% solution): Typically alkaline

• Hygroscopicity: High (excellent moisture-binding ability)

Functions & Benefits

• Humectant: Attracts and retains moisture, improving skin hydration

• pH Buffer / Regulator: Helps stabilize and adjust formulation pH

• Skin Conditioning Agent: Enhances smoothness and softness of skin

• Soap Hardener: Improves hardness, longevity, and lather quality of soaps

• Preservative Booster: Can support preservation systems by lowering water activity

Applications

• Skincare creams, lotions, and serums

• Cleansers and facial washes

• Liquid and bar soaps

• Hair care products

• Pharmaceutical and topical formulations

Safety & Regulatory

• Approved for cosmetic and pharmaceutical use worldwide

• Generally well tolerated when used at recommended levels

• Suitable for leave-on and rinse-off formulations

Summary

Sodium Lactate 60% Solution is a multifunctional, skin-friendly ingredient that delivers superior hydration, supports pH balance, and improves product performance. Its strong humectant action and excellent compatibility make it a staple ingredient in high-quality skincare, soap, and personal care formulations.