Sodium Levulinate (Sodium Levulinate)

Sodium Levulinate is the sodium salt of levulinic acid and is commonly used in cosmetic formulations as a mild preservative-supporting ingredient and skin-conditioning agent. Often sourced from renewable raw materials, it is valued for helping reinforce microbiological stability—particularly when used as part of a broader preservation system—while maintaining a gentle sensorial profile suitable for sensitive-skin concepts. It can also contribute to overall formula balance and comfort, and is frequently included in “naturally derived” or minimalist preservation approaches. Typical applications include creams, lotions, serums, toners, micellar waters, cleansers, baby-care products, and haircare, where it is commonly paired with potassium sorbate, sodium benzoate, glycols, or other multifunctional boosters to broaden antimicrobial coverage. Use level and formulation strategy are guided by supplier specifications, with attention to pH dependency, solubility, and compatibility within the finished system and packaging to ensure robust preservation performance.