Patents

L’Oréal Patents Preservation Agent for Hair Care Composition

The formula is comprised of 4-(3-ethoxy-4-hydroxyphenyl)-2-butanone.

US Patent No. 12,048,758 B2 (Gaelle Farhi, Gaelle Moneuze, Damien Drillon, Julien Galvan); L’Oréal, Paris, has patented a  synergistic preserving agent for protecting a hair cosmetic composition against contamination from microorganisms. The composition is comprised of: • a first compound of formula shown below, present in a content ranging from 0.005% to 0.1% by weight relative to the total weight of the hair cosmetic composition containing the preserving agent; US Patent No. 12,048,7...

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