Skincare agents
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Issued Date -
Mar 6, 2003
app pub date -
Aug 28, 2002
filing date -
Mar 4, 2000
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Skin care compositions containing microcapsules with a mean diameter of from 0.1 to 5 mm are disclosed. The microcapsules are prepared by a process comprising: (a) providing an o/w emulsion prepared by combining an aqueous preparation of a component selected from the group consisting of retinol and retinolic acid with an oil component in the presence of an emulsifier; (b) combining the emulsion and an aqueous solution of an anionic polymer to form a matrix; (c) contacting the matrix with an aqueous chitosan solution such that membrane-encapsulated products are formed in an aqueous phase; and (d) separating the products from the aqueous phase.
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