Stiefel Laboratories develops prescription and over-the-counter daily skin care products. It offers products that are used for the treatment of acne, atopic dermatitis, psoriasis, superficial skin infections, and non-melanoma skin cancers. The company was founded in 1847 and is based in Brentford, United Kingdom. As of July 22, 2009, Stiefel Laboratories, Inc. operates as a subsidiary of GlaxoSmithKline plc.