Low pH skin-treatment composition
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United States of America Patent
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Aug 5, 1997
Grant Date -
N/A
app pub date -
Apr 11, 1995
filing date -
Apr 11, 1995
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A low pH skin-treatment composition employs cationic surfactants generally known to be skin irritants and a fatty acid, together with a hydrocarbon component in an oil-in-water emulsion. The addition of fatty acid to the cationic surfactant appears to form a complex which prevents the cationic surfactant from irritating the skin and at the same time substantially reduces pH of the composition. The resulting composition is not skin irritating, and reflects a pH of about 2-4. The composition may be used to restore pH of skin after exposure to alkaline compositions, and as a vehicle for the administration of active agents having an acidic pH.
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