Topical film forming systems are such developing drug delivery systems meant for topical application to the skin, which adhere to the body, forming a thin transparent film and provide delivery of the active ingredients to the body tissue. These are intended for skin application as emollient or protective and for local action or transdermal penetration of medicament for systemic action.The transparency is an appreciable feature of this polymeric system which greatly influences the patient acceptance. In the current discussion, the film forming systems are described as a promising choice for topical and transdermal drug delivery.

Kashmira Kathe, Harsha Kathpalia, Film forming systems for topical and transdermal drug delivery, In Asian Journal of Pharmaceutical Sciences, Volume 12, Issue 6, 2017, Pages 487-497, ISSN 1818-0876, 10.1016/j.ajps.2017.07.004.