Lightening compositions and methods of use
AssigneeAvon Products, Inc.
InventorsHarish Mahalingam, Brian Jones, Nicole McCain
Life of this patent
Estimating the term…
Abstract
There is provided a topical lightening composition having carboxylmethyl cysteamine as a melanin synthesis-regulating agent and a cosmetically acceptable vehicle. Also, there is provided a topical lightening composition having N, N, S (tris) carboxylmethyl cysteamine and a cosmetically acceptable vehicle. In addition, there is provided a topical lightening composition having carboxylmethyl cysteamine, preferably N, N, S (tris) carboxylmethyl cysteamine, and an additional lightening agent and a cosmetically acceptable vehicle. The compositions and methods of the invention are effective to lighten skin, hair, lips, and/or nails.
Claims33
A topical lightening composition, comprising:
- a) N, N, S (tris) carboxylmethyl cysteamine in an amount effective to regulate melanin synthesis;
- and
- b) a cosmetically acceptable vehicle.
A method of lightening skin, hair, lips, and/or nails, comprising:
- applying topically to an area of the skin, scalp, hair, lips, or nails in need of lightening a composition having
- a) carboxylmethyl cysteamine in a lightening-effective amount;
- and
- b) a cosmetically acceptable vehicle wherein the composition is topically applied to treat at least one of the following conditions;
- freckles, age spots, hyperpigmentation, post-inflammatory hyperpigmentation, melasma, after-burn scar, nail stain, yellowing of skin and dark circles under eye.
A method of lightening skin, hair, lips, and/or nails, comprising:
- applying topically to an area of the skin, scalp, hair, lips, or nails in need of lightening a composition having
- a) carboxylmethyl cysteamine in a lightening-effective amount;
- b) one or more additional lightening agents;
- and
- c) a cosmetically acceptable vehicle wherein said one or more additional lightening agents are selected from the group consisting of melanin synthesis regulating agents, melanin uptake-inhibiting agents and combinations thereof.
A method of lightening skin, hair, lips, and/or nails, comprising:
- applying topically to an area of the skin, scalp, hair, lips, or nails in need of lightening a composition having
- a) carboxylmethyl cysteamine in a lightening-effective amount;
- b) one or more additional lightening agents;
- c) one or more melanin uptake-inhibiting agents;
- and
- d) a cosmetically acceptable vehicle.
A method of lightening skin, hair, lips, and/or nails, comprising:
- applying topically to an area of the skin, scalp, hair, lips, and/or nails in need of lightening a composition having
- a) carboxylmethyl cysteamine in a lightening-effective amount;
- b) one or more melanin uptake-inhibiting agents;
- and
- c) a cosmetically acceptable vehicle.
Dependencies are inferred from the claim text.