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US 11,452,693 B2Granted
Freeze dried active composition and a system for using the same
OwnerMaria Buchalova, Teanoosh Moaddel +4inventors
InventorsMaria Buchalova, Teanoosh Moaddel, Ravi Krishnan, Lise Jorgensen, Krassimir Petkov Velikov, Michael Jacobus Suijker
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Abstract
Freeze dried active compositions are described. The compositions comprise less than 6.5% by weight water and they may be hydrated or added to end use compositions in order to yield compositions for delivering superior topical benefits to consumers.
Claims19
A freeze dried active composition comprising:
- (a) active;
- (b) oil comprising capric caprylic triglyceride;
- (c) less than 6.5% by weight of the composition, water;
- (d) 0.5 to 20% emulsifier;
- and
- (e) thickening agent
- wherein from 4 to 25 times more oil by weight is present than active in the composition, the oil having a peroxide value from 0 to 4 meq/kg and a polarity index of from 0.1 to 80 mN/m, and less than 0.5% by weight of the total weight of oil is hydroxylated and wherein the active is retinoic acid precursor represented by the formula
- where each R is independently a hydrogen or a C1-6 alkyl group and X is
- and further where each R′ is hydrogen or a C1-C3 alkyl and n is an integer from 0 to 16, the active comprising retinyl propionate, retinyl palmitate or a mixture thereof and the freeze dried active composition is a freeze dried water continuous emulsion.
6 more elements
Dependencies are inferred from the claim text.