Cosmetic preparation containing chitosan
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United States of America Patent
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-
Oct 15, 1991
Grant Date -
N/A
app pub date -
Oct 30, 1989
filing date -
Nov 28, 1988
priority date (Note) -
Expired
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Abstract
Chitosan in a form of a polymer having a molecular weight of from 3,000 to 700,000 is incorporated into a cosmetic preparation in an amount effective for inhibiting growth of microorganisms in the cosmetic preparation.
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