Abstract:
The present invention provides a nanoemulsion, that includes: an oily phase dispersed in an aqueous phase; and at least one surfactant that is solid at a temperature of less than or equal to 45° C. and which is selected from the group including ethoxylated fatty ethers and ethoxylated fatty esters, and mixtures thereof; wherein the oily phase includes oil globules having a number-average size of less than 100 nm; wherein the oily phase includes at least one oil having a molecular weight of greater than 400; and wherein a weight ratio of the oily phase to the surfactant ranges from 2 to 10. The invention also provides a process for making the nanoemulsion, and methods for its use. The emulsion is ideally transparent and stable on storage. It can ideally contain large amounts of oil while retaining good transparency and good cosmetic properties. The nanoemulsion is particularly useful in compositions, including topical, pharmaceutical, cosmetic, opthalmic, ophthalmologic. The composition is also particularly useful in applications to the skin, hair, scalp, mucous membranes, and eyes.
Abstract:
A dispersion, in an aqueous medium, of dehydration-resistant vesicles containing a lipid phase and an encapsulated aqueous phase. The dispersion additionally contains, either in the aqueous medium or in the encapsulated aqueous phase or in both, at least one polymer, in the form of particles, which has a glass transition temperature Tg, in the presence or absence of a plasticizing agent, of lower than 70.degree. C. at 0% relative humidity. The dispersion can be used in the cosmetic or pharmaceutical fields for topical application for the care and/or makeup of the skin and for care of the scalp and/or hair.
Abstract:
The invention relates to the use of a spin trap employed as an electron paramagnetic resonance measurement probe, in a cosmetic or dermatological composition for the light-protective, anti-ageing and/or anti-acne treatment of the skin. In particular, this spin trap is encapsulated in lipid vesicles which are capable of diffusing into the deep layers of the skin.
Abstract:
Compositions comprising a first dispersion of lipid vesicles which are capable of penetrating into the deep layers of the skin and which contain at least one active agent chosen from anti-oxygenated-free-radical agents, proteins, sugars, enzymes, vitamins, nucleotides and sequences thereof, trace elements, coenzymes, unsaturated fatty acid-rich phospholipids, silicon derivatives and plant extracts, for treating these deep layers, and a second dispersion of lipid vesicles which are capable of penetrating into the surface layers of the skin and which contain at least one active agent chosen from screening agents, anti-oxygenated-free-radical agents, sugars, amino acids, vitamins, ceramides, unsaponifiable products derived from plant oils, and components of sweat, for treating these surface layers, are effective protecting, nourishing and/or firming the skin.
Abstract:
The subject matter of the present invention is a sterile liquid composition dedicated to administration into or through the skin and/or the lips, wherein said composition comprises, in a physiologically acceptable medium, at least one photo-crosslinkable compound, wherein said compound comprises at least one activated photo-dimerizable group having at least one activated double bond and selected from photo-dimerizable groups carrying a stilbazolium function of formula (Ia) or (Ib) and wherein the photo-dimerizable groups carry a styrylazolium function of formula (II), the photo-dimerizable group(s) being carried by a partially or totally hydrolysed poly(vinyl acetate) polymer, a polysaccharide or a polyvinyl alcohol.
Abstract:
The present invention relates to a composition in the form of an emulsion of the oil-in-water type formed of oily globules which are each provided with a lamellar liquid crystal coating and which are dispersed in an aqueous phase, wherein it has a pH ranging from 3 to 5.5 and in that it contains at least one lipophilic surface-active agent with an HLB ranging from 2 to 5, at least one hydrophilic surface-active agent with an HLB ranging from 8 to 12 and at least one amphiphilic compound of ionic nature at a pH ranging from 3 to 5.5.
Abstract:
Disclosed are cosmetic compositions and methods for making up keratinous tissue using the compositions, as well as methods of making the compositions. The compositions contain a photoluminescent polymer (PLP) which is an oligomeric polyester synthesized from a multifunctional monomer and a diol, and which has grafted thereon an amino acid or an amino acid derivative. The compositions achieve a colorizing and/or UV-protectant effect when applied to keratinous tissue.
Abstract:
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.
Abstract:
The disclosure relates to sunscreen compositions having a synergistic combination of ultraviolet light (UV) filtering agents that provide a high sun protection factor (SPF). Compositions according to the disclosure have high SPF values without requiring high overall amounts of UV filtering agents, and without requiring the use of oxybenzone. Furthermore, the disclosure relates to methods of using the described compositions for protecting keratinous substances such as skin and hair from UV radiation.
Abstract:
A cosmetic composition in the form of an oil-in-water emulsion methods of using and producing cosmetic compositions is provided. The cosmetic composition includes an aqueous phase, an oil phase comprising a water-in-oil emulsifier, and an oil stabilizing component. The water-in-oil emulsifier is at concentration, by weight, of about 0.01% to about 6.0%, based upon weight of the composition. The oil stabilizing component includes one or both of an amphiphilic compound or a surfactant having an HLB of 13 or greater added to the aqueous phase. The oil stabilizing component is at a concentration, by weight, of about 0.01% to about 1.0%, based upon weight of the composition. The oil-in-water emulsion has an increased water load relative to water-in-oil emulsions without having an increased viscosity.