Historically, skin care has been constrained to a generic approach of product development research, product development, and clinical testing that is not representative of client diversity or need. This has created two orthogonal client problems which can be referred to as the efficacy problem and selection problem. {mprestriction ids="3,4,26,18,6,7,8,9,14,18"} THE EFFICACY PROBLEM The efficacy problem stems from the limitations of traditional product clinical testing. Claims…