Skin lightening agents, compositions and methods
AssigneeConopco, Inc.
InventorsLeonard J. Shore, Sheila Alves Rocha, Martin D. McKinney
Life of this patent
Estimating the term…
Abstract
Cosmetic compositions and methods, particularly for skin lightening, using 7-hydroxy-2-phenyl coumarin and derivatives of general formula I as skin lightening agents alone or in combination with other skin benefit agents and together with a cosmetic vehicle: Where R1 and/or R2 may be positioned at the 1-, 2-, 3-, 5-, and/or 6-positions on the phenyl ring. Each or both R1 and/or R2 represents a hydrogen atom, OH, C1–C4 acyl group, or C1–C4 alkyl group; and R represents a hydrogen atom, C1–C4 acyl group, or C1–C4 alkyl group.
Claims19
A cosmetic method of skin lightening comprising applying to the skin a composition comprising:
- a. about 0.000001 to about 50% of a compound of general formula I:
- Where R1 and/or R2 may be positioned at the 1-, 2-, 3-, 5-, and/or 6-positions on the phenyl ring,
- Each or both R1 and/or R2 represents a hydrogen atom, OH, C1–C4 acyl group, or C1–C4 alkyl group;
- and
- R represents a hydrogen atom, C1–C4 acyl group, or C1–C4 alkyl group;
- b. a cosmetically acceptable carrier
- wherein the compound is a skin lightening agent.
A cosmetic composition comprising:
- a. about 0.000001 to about 50% of a compound of general formula I:
- Wherein R1 and/or R2 may be positioned at the 1-, 2-, 3-, 5-, and/or 6-positions on the phenyl ring;
- Each or both R1 and/or R2 represents a hydrogen atom, OH, C1–C4 acyl group, or C1–C4 alkyl group;
- and
- R represents a hydrogen atom, C1–C4 acyl group, or C1–C4 alkyl group;
- and
- a. a cosmetically acceptable carrier
- wherein the compound is a skin lightening agent.
A cosmetic composition for skin lightening, comprising:
- a. about 0.000001 to about 50% of a compound of general formula I:
- Wherein R1 and/or R2 may be positioned at the 1-, 2-, 3-, 5-, and/or 6-positions on the phenyl ring;
- Each or both R1 and/or R2 represents a hydrogen atom, OH, C1–C4 acyl group, or C1–C4 alkyl group;
- and
- R represents a hydrogen atom, C1–C4 acyl group, or C1–C4 alkyl group;
- and
- b. a cosmetically acceptable carrier
- wherein the compound is a skin lightening agent.
Dependencies are inferred from the claim text.