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US 9,168,398 B2Granted
Skin treatment compositions
AssigneeOmp S.R.L.
InventorsJudy Hattendorf, Steve Carlson
Life of this patent
Estimating the term…
Abstract
Arbutin-containing compositions are useful for topical application to provide enhanced luminosity, brightening or lightening to the skin of a user and are at least 85% as efficacious (with regard to skin lightening, when used alone or in a system as measured by Chromameter® b* parameter values) as substantially corresponding compositions containing hydroquinone in an amount from about the same molar amount to about 1.5 times the molar amount of arbutin.
Claims4
An arbutin-containing composition comprising:
- arbutin in an amount from about 5% to about 10% by weight of the total composition;
- a preservative in an amount from about 0.01 to about 5% by weight of the total composition;
- a chelating agent in an amount from about 0.01 to about 5% by weight of the total composition;
- a humectant in an amount from about 1 to about 20% by weight of the total composition;
- an emulsifier in an amount from about 1 to about 20% by weight of the total composition;
- a pH adjustment agent in an amount from about 0.01 to about 5% by weight of the total composition;
- and
- a reducing agent in an amount from about 0.1 to about 10% by weight of the total composition, wherein the composition is at least 85% as efficacious with regard to skin lightening, when used alone or in a system as measured by Chromameter® b* parameter values as a substantially corresponding composition containing hydroquinone in an amount from about the same molar amount to about 1.5 times the molar amount of arbutin.
5 more elements
Dependencies are inferred from the claim text.