A - Human Necessities – 61 – K
Patent
A - Human Necessities
61
K
167/159, 167/310
A61K 9/127 (2006.01) A61K 8/02 (2006.01) A61K 8/67 (2006.01) A61K 31/07 (2006.01) A61K 31/23 (2006.01) A61K 31/355 (2006.01)
Patent
CA 1333567
Cosmetic and pharmaceutical compositions and methods comprising delivery systems for the controlled release and enhanced penetration of biologically active materials (e.g., Vitamin A) to the skin. The delivery systems comprise cholesteric liquid crystals wherein the active material is retained within the lamellar molecular structure (i.e., between the molecular sheets) of the choles- teric liquid crystal.
585436
Cioca Gheorghe
Hayward James A.
Herstein Morris
Smith Walter P.
Tan Manuel L.
Estee Lauder Inc.
Gowling Lafleur Henderson Llp
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