Patent Picks—Repigmenting Hair, Electrolysis Hair-shaping, Dense Chitosan and More in Hair

May 28, 2014 | Contact Author | By: Cosmetics & Toiletries editors
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Title: Patent Picks—Repigmenting Hair, Electrolysis Hair-shaping, Dense Chitosan and More in Hair
hairx pigmentx fragrancex UVx shapingx
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Patent Picks are compiled by the editors from publicly available sources. This edition features the latest inventions related to hair care, including pigmentation, fragrance, sun protection, hair shaping and more.

15-Hydroxyprostaglandin dehydrogenase for pigment production in hair
US Patent 8735445
Publication date: May 27, 2014
Assignee: L'Oréal

According to this patent, there is a need for novel solutions that effectively promote pigmentation in both hair and skin. These inventors unexpectedly demonstrated the capability to stimulate melanin synthesis in melanocytes by inhibiting the degradation of prostaglandins synthesized by the melanocytes or those present in its environment. The present invention therefore features the formulation of at least one 15-hydroxyprostaglandin dehydrogenase inhibitor to promote pigmentation of the skin or skin appendages, in particular of the hair and/or of body hair. Inhibitors of 15-hydroxyprostaglandin dehydrogenase (15-PGDH) can include tetrazole, styrylpyrazole, phenylfuran, phenylthiophene, phenylpyrrazole, pyrazolecarboxamide, 2-thioacetamide and azo compounds.

Vanillin acetals for sensory stimulation
U.S. Patent 8735446
Publication date: May 27, 2014
Assignee: Takasago International Corp.

The present invention relates to a sensory stimulant ingredient containing one or more vanillin acetals and compositions containing it such as flavors, fragrances, beverages or food products, cosmetic products, a daily utensil product, an oral composition, or a pharmaceutical product. Said vanillin acetals show an excellent pungent and/or warming sensation effect and a cooling sensation, which emphasizes effect. Examples in which the fragrance can be incorporated include hair cosmetics, hair care products, agents for bathing and more.

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