Cosmetic compositions containing substituted amine derivatives

Abstract

Cosmetic methods and compositions containing selected substituted secondary amine aromatic compounds. The inventive compositions provide control of sebum secretion from sebocytes, improved oil control and improved feel, and prevent shine and stickiness.

Description

[0001] Cosmetic methods and compositions containing secondary amine aromatic derivatives. BACKGROUND OF THE INVENTION[0002] A frequent, undesirable skin condition is "oily skin," the condition which results from the excessive amount of sebum on the skin. Sebum is skin oil which is produced by sebocytes (cells of the sebaceous glands in the skin) and is then secreted to the skin surface. Oily skin is associated with a shiny, undesirable appearance and a disagreeable tactile sensation. Oily skin affects various age groups. Cosmetic products which provide sebum control are highly desirable.[0003] The present invention includes, in its first aspect, a cosmetic composition comprising:[0004] (i) from about 0.001% to about 50% of a substituted secondary amine aromatic derivative 1[0005] selected from the group consisting of compounds A, B, C, D and E as follows:1 Compound R R' A 2 3 B 4 5 C 6 7 D 8 9 E 10 11[0006] and[0007] (ii) a cosmetically acceptable vehicle.[0008] The present inventio...

AI Technical Summary

Benefits of technology

[0030] Humectants of the polyhydric alcohol type may also be employed as cosmetically acceptable carriers in compositions of this invention. The humectant aids in increasing the effectiveness of the emollient, reduces scaling, stimulates removal of built-up scale and improves skin feel. Typical polyhydric alcohols include glycerol, polyalkylene glycols and more preferably alkylene polyols and their derivatives, including propylene glycol, dipropylene glycol, polypropylene glycol, polyethylene glycol and derivatives thereof, sorbitol, hydroxypropyl sorbitol, hexylene glycol, 1,3-butylene glycol, 1,2,6-hexanetriol, ethoxylated glycerol, propoxylated glycerol and mixtures thereof. For best results the humectant is preferably propylene glycol or sodium hyaluronate. The amount of humectant may range anywhere from 0.5 to 30%, preferably between 1 and 15% by weight of the composition.

[0041] The preferred ester for use in the present invention is selected from retinyl palmitate, retinyl acetate and retinyl propionate, because these are the most commercially available and therefore the cheapest. Retinyl ester is also preferred due to its efficacy.

Problems solved by technology

A frequent, undesirable skin condition is "oily skin," the condition which results from the excessive amount of sebum on the skin.

Oily skin is associated with a shiny, undesirable appearance and a disagreeable tactile sensation.

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