Nanoemulsion based on sugar fatty esters or on sugar fatty ethers and its uses in the cosmetics, dermatological and/or ophthalmological fields

摘要

A nanoemulsion, the oily globules of which have a number-average size of less than 100 nm, comprising a surfactant which is solid at a temperature of less than or equal to 45° C., which surfactant is chosen from esters of a fatty acid and of a sugar and ethers of a fatty alcohol and of a sugar, and at least one oil having a molecular weight of greater than 400, the ratio by weight of the amount of oily phase to the amount of surfactant ranging from 2 to 10. The nanoemulsion may be used for cosmetics and dermatological applications, in particular for moisturizing the skin and/or mucous membranes, as well as for treating the hair, and in the ophthalmological field, as an eye lotion for treating the eyes.

主权项

1. An oil-in-water nanoemulsion, comprising:
an oily phase dispersed in an aqueous phase and having oil globules with a number-average size of less than 100 nm, wherein the oil globules are free of a lamellar liquid crystal coating, a surfactant which is solid at a temperature of less than or equal to 45° C., wherein the surfactant is selected from the group consisting of esters of a fatty acid and of a sugar and ethers of a fatty alcohol and of a sugar, and an oily phase comprising 10% to 40% by weight with respect to the total weight of the nanoemulsion which comprises at least one oil having a molecular weight of greater than 400, wherein the ratio by weight of the amount of oily phase to the amount of surfactant is 2 to 10, and wherein the nanoemulsion has a turbidity of 60 to 600 NTU.