Assertion: liposome's advantage | /r/HasProperty | attributable
Facets:
Source sentences:
text: It is accordingly seen from the foregoing that the present invention provides novel liposome compositions consisting essentially of small vesicles, preferably but not limited to unilamellar (one bilayer) vesicles, consisting essentially of lecithin and between about 10 and 90 percent, preferably 16 and 90 percent, by weight of fatty acid-esterified collagen hydrolysate, especially between about 20 and 80 percent, representatively such percentages of OHAP as a representative species of the type of FAECH which may advantageously be employed, and a method for the preparation thereof, as well as the important aspect of vesicle dimensional control and particle size reduction by employing increased ratios of FAECH to lecithin, and further a method for the use thereof in the preparation of cosmetic and pharmaceutical preparations or compositions, and such compositions themselves containing effective amounts of cosmetically-effective or pharmaceutically-effective active ingredients, which are preferably but not necessarily lipid-soluble active ingredients, with all of the attendant advantages as set forth and illustrated in the foregoing, especially the important aspect of stability against undesirable and intolerable size increases in individual vesicle dimensions over time (which shortcoming has characterized previous similar prior art liposome vesicles and compositions containing the same), without an increase in permeability, and consequently an importantly improved storage stability, all of which advantages are attributable to the high percentage of fatty-acid esterified collagen hydrolysate, representatively OHAP, in the vesicle membrane or wall.