Skin-whitening agent
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United States of America Patent
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Nov 3, 2015
Grant Date -
Jun 3, 2010
app pub date -
Mar 10, 2008
filing date -
Mar 13, 2007
priority date (Note) -
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Abstract
A skin-whitening agent offering an excellent whitening effect and being effective in preventing and treating age spots, freckles, etc., where such skin-whitening agent contains as its effective ingredient a whey protein hydrolyzate characterized by a molecular weight distribution of 10 kDa or less, main peak of 200 Da to 3 kDa, APL (average peptide-chain length) of 2 to 8, free amino acid content of 20% or less, and antigenicity of one-ten thousandth of β-lactoglobulin or less, as well as a cosmetic, drink or food, feed, pharmaceutical preparation or other skin-whitening product containing such skin-whitening agent.
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