This invention relates to a cosmetic combination product comprising a first cosmetic composition comprising glucosamine or one of the salts thereof, a second cosmetic composition comprising hyaluronic acid, and possibly a third cosmetic composition comprising collagen, a cosmetic composition comprising glucosamine or one of the salts thereof, hyaluronic acid, and possibly collagen, the uses thereof, in particular for inducing the synthesis of hyaluronic acid and as such combat aging of the skin affecting the keratinocytes and/or the fibroblasts and the dermis, as well as a cosmetic method that implements these combination products and compositions.

The present invention relates generally to methods and compositions useful for improving skin barrier function and reducing skin redness. The compositions comprise cholesterol, ceramide II, and shea butter or cholesterol, ceramide II, shea butter, saccharide isomerate, hydroxyphenyl propamidobenzoic acid, and Phoenix dactylifera (date palm) seed extract.

The present invention relates generally to methods and compositions useful for improving skin barrier function and reducing skin redness. The compositions comprise cholesterol, ceramide II, and shea butter or cholesterol, ceramide II, shea butter, saccharide isomerate, hydroxyphenyl propamidobenzoic acid, and Phoenix dactylifera (date palm) seed extract.

The present disclosure relates to a novel pseudoceramide compound. More specifically, the present disclosure provides: a novel pseudoceramide compound represented by Formula 1, having skin moisturizing and barrier function restoring characteristics; and a composition for an externally-applied dermal preparation, the composition containing the novel pseudoceramide compound.

The present disclosure relates to a novel pseudoceramide compound. More specifically, the present disclosure provides: a novel pseudoceramide compound represented by Formula 1, having skin moisturizing and barrier function restoring characteristics; and a composition for an externally-applied dermal preparation, the composition containing the novel pseudoceramide compound.

Provided is a means for preparing a free ceramide (Cer) from a glycosyl inositol phospho ceramide (GIPC). Specifically provided is a composition for digesting a glycosyl inositol phospho ceramide (GIPC) or a glucosylceramide for producing a free ceramide, the composition comprising a mushroom self-digestion liquid or purified product thereof.

Provided is a means for preparing a free ceramide (Cer) from a glycosyl inositol phospho ceramide (GIPC). Specifically provided is a composition for digesting a glycosyl inositol phospho ceramide (GIPC) or a glucosylceramide for producing a free ceramide, the composition comprising a mushroom self-digestion liquid or purified product thereof.

The present invention relates to a retinal-containing multilamellar vesicle and, more specifically, to a retinal-containing multilamellar vesicle comprising 0.01-5% by weight of retinal, 0.1-10% by weight of rapeseed sterol, 0.1-10% by weight of phytosteryl/behenyl/octyldodecyl lauroyl glutamate, 0.1-8% by weight of polyglyceryl-10 oleate, 0.1-10% by weight of cholesterol, 0.01-5% by weight of hydrogenated lecithin, 0.01-5% by weight of ceramide, 1-15% by weight of squalane, 0.1-10% by weight of vegetable butter, 3-30% by weight of oily liquid, 1-20% by weight of glycerin, and 30-70% by weight of water, and to a cosmetic composition comprising same.

The present invention relates to a method for purification of liquid compositions containing at least one sphingolipid and the use of a specific clay mineral for the purification of such liquid compositions.

Provided are a novel pseudoceramide compound and uses thereof. The pseudoceramide has antioxidant, anti-inflammatory, skin whitening, and moisturizing effects. In addition, the pseudoceramide can be synthesized in a simple and economically advantageous manner and is free from problems associated with the preparation of cosmetic formulations resulting from low hydrophilicity, thus being suitable for use in cosmetic applications.