US 5,401,517 A · Cosmetic method for treatment of skin

Abstract

A method is provided for improving skin condition through a system whose steps include applying to the skin separately on a plurality of days a first composition that incorporates a retinoid which is either retinol or retinoic acid in a pharmaceutically acceptable carrier. Once the skin has acclimated to any irritation induced by the first composition, a second composition is applied to the skin daily for a subsequent period of time. The second composition will also include retinoid but at a level at least about 10% higher than that employed in the first composition. Once the skin has acclimated to the second composition, subsequent progressive increases of the active retinoid can be applied over subsequent periods of time. Finally, a maintenance level composition is utilized with the highest level of retinoid in the progressive program to minimize potential irritation.

Claims4

Dependent claims

A method for improving skin condition is provided through a system whose steps comprise:

(i) applying to the skin separately on a plurality of days a first composition comprising:
from about 0.0001 to 5% of a retinoid selected from the group consisting of retinol and retinoic acid;
and
from about 1 to 99.9% of a first pharmaceutically acceptable carrier;
(ii) applying to the skin, after completion of step (i), a second composition separately on a plurality of further days comprising:
from about 0.0002 to 5% of a retinoid selected from the group consisting of retinol and retinoic acid,
identical to but at a concentration at least about 10% higher than that employed in step (i);
and
from about 1 to 99.9% of a second pharmaceutically acceptable carrier.

6 more elements

Dependencies are inferred from the claim text.

Cosmetic method for treatment of skin

Life of this patent

Cosmetic method for treatment of skin

Life of this patent

Abstract

Claims4