Menthyl lactate provides a mild, long-lasting cooling effect and a pleasant sensation of freshness on the skin. This white, crystalline substance is not water-soluble and is stable within a pH range of 4–8. Although the substance has a slight menthol-like odor, formulations containing it are virtually odorless; furthermore, it does not interfere with the scent of essential oils or perfume oils. The cooling effect of menthyl lactate is milder than that of pure menthol, but it is much better tolerated by the skin. The product should be added to the emulsion at approximately 40 °C. One option is to pre-dissolve the raw material in fragrance oils or fatty oils. This is particularly recommended for use in shampoos or shower gels.
 
This pre-solution can then be added to the surfactants.
 
This may increase the viscosity of the formulation. Please note that high concentrations of oils and waxes can noticeably reduce the cooling effect. Adding an additional 5–10% alcohol (ethanol) can enhance the immediate cooling effect on the skin.
 
Melting point:
 
40–42 °C
 
Solubility:
 
Soluble in oil and in ethanol (at least 50%)
 
Usage concentration:
 
0.1–2.0%