Sodium lactate is a liquid salt that is derived from the natural fermentation of sugars found in corn and beets. In cosmetics, sodium lactate may be used as a gentle preservative, acting as an inhibitor of bacteria growth.
Because sodium lactate is a salt, it is a natural humectant, providing moisture. This makes it a great additive to lotions, typically replacing glycerine in the recipe.
Sodium lactate is also used to make soaps more stable and hold shape better. The addition of 1-2 tablespoons of sodium lactate to 1kg of soap batter will make the soap slide out of the moulds more easily without damaging the bars of soap.
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