| abstract |
The present invention relates to a patch for controlled topical or transdermal delivery of effective levels of cosmetic, dermatological, and pharmaceutical active ingredients onto the skin, hair follicles, and sebaceous glands, with minimal discomfort and ease of use. The patch can be transparent or clear and comprises a rate-controlling matrix layer. The matrix layer comprises water-sensitive, bioadhesive, film forming polymers, a water soluble oligomer, and a surfactant. The cosmetic, dermatological, and pharmaceutical active ingredients are soluble or dispersed in the matrix. The patch becomes tacky when wetted and adheres onto the skin. The adhesive properties of the patch are sufficient to maintain the patch in place on the skin for the recommended treatment period while allowing the patch to be readily removed without causing skin irritation or leaving adhesive residue on the skin. |