Sodium Lactate: Comprehensive Overview
Overview
Sodium Lactate is the sodium salt of lactic acid, derived through the fermentation of sugars. It is widely utilized in skincare and cosmetic formulations for its multifunctional properties, including hydration, pH regulation, and preservation support. Unlike lactic acid, it does not exfoliate but shares its hydrating benefits, making it suitable for sensitive skin.
Key Features
- Humectant Properties: Attracts and retains moisture, enhancing skin hydration.
- pH Stabilizer: Helps maintain formulations at a skin-friendly pH (slightly acidic).
- Preservative Booster: Enhances efficacy of preservatives by creating an unfavorable environment for microbes.
- Texture Enhancer: Improves product spreadability and feel, often contributing to a smooth, non-sticky finish.
- Natural Origin: Produced via fermentation, aligning with natural and organic skincare trends.
Applications
- Skincare: Lotions, creams, serums, and cleansers to counteract dryness.
- Haircare: Conditioners and shampoos for moisture retention.
- Bath Products: Bath salts and soaks for skin-softening benefits.
- Food Industry: As a preservative and pH regulator (though this focuses on cosmetic uses).
Benefits
- Gentle Hydration: Mimics the skin’s Natural Moisturizing Factors (NMFs), supporting barrier function.
- Sensitive Skin-Friendly: Low irritation risk at typical concentrations (2–5%).
- Synergistic Formulations: Works well with other humectants (e.g., glycerin, hyaluronic acid) and preservatives.
