Back to results
US 2004/0175341 A1Published application
Microemulsion for cosmetic or pharmaceutical use containing an active ingredient
OwnerMonna Marie Manninginventor
Life of this patent
Estimating the term…
Abstract
The invention relates to a transparent microemulsion comprised of a surfactant or emulsifier based on polyethylene glycol, a first cosurfactant (or coemulsifier) based on polyglycerol, a second cosurfactant (or coemulsifier) based on monoesters, an aqueous or hydrophilic phase, and may or may not include an active for delivery that can include vitamins, sunscreens, antiaging agents, or pharmaceutical actives. The said microemulsion is useful in personal care and pharmaceutical products.
Claims11
A microemulsion for pharmaceutical or cosmetic use, comprising a mixture of:
- at least one water-soluble phase, qs to 100.
- at least one surfactant or emulsifier based on polyethylene glycol, and represents at least 8% to 50% by weight of the mixture;
- at least a cosurfactant based on polyglycerol and fatty acids, which may be, in the mixture, in a proportion lower than that of the surface-active agent, and represents at least 0.5% to 20% by weight of the mixture;
- at least a second cosurfactant based on monoesters of mnedium chain acids, which may be, in the mixture, in a proportion lower than that of the surface-active agent, and represents at least 0.5% to 20% by weight of the mixture.
1 more element
Dependencies are inferred from the claim text.