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Special guest: Jennifer Linder, MD, board-certified dermatologist, formally trained biomedical engineer and chemist, and Chief Scientist for PCA SKIN, a cosmeceutical firm.

Jennifer Linder, MD

To understand the sea change occurring in the skin care marketplace, it is imperative for aesthetic practitioners of all stripes to understand the science behind the discovery of new molecules, new formulations, and new effectiveness of the "new wave" of products. To gain insight into this issue, PSP editor Jeffrey Frentzen spoke with Jennifer Linder, MD, about the latest developments in the science of skin-care product ingredients, including the use of preservatives and parabens.