Cosmetic bronzing agent based on dihydroxyacetone

Details Cosmetic bronzing agent based on dihydroxyacetone Cosmetic bronzing agent based on dihydroxyacetone

2004-09-08

2010-11-09

Richter, Johann R (Department: 1616)

Drug, bio-affecting and body treating compositions

Topical sun or radiation screening, or tanning preparations

C424S401000, C424S450000, C424S736000, C514S023000

Reexamination Certificate

active

07829068

ABSTRACT:
A novel cosmetic bronzing agent based on dihydroxyacetone. the bronzing agent contains 0.1-4.5 wt. % dihydroxyacetone (DHA) mounted in a lamellar structure, 0.15-3.5 wt. % free dihydroxyacetone, whereby the ratio between mounted lamellar DHA and free DHA is located in the region of 1:1.5 -1:0.25 and the total amount of DHA is equal to or less than 5 wt, %, also containing 0.01-10 wt % phospholipids and up to 100 wt % cosmetic auxiliary agents, carrier substances, additional active ingredients and mixtures thereof. The bronzing agent has a particularly durable, even and intensive synergistic action.

REFERENCES:
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patent: 5874091 (1999-02-01), Grollier
patent: 6007796 (1999-12-01), Menzel et al.
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patent: WO 8904651 (1989-06-01), None
patent: WO 02089770 (2002-11-01), None
Translation of WO/1989/04651.
Machine translation of WO/2002/089770 A2.

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