Peptides are one of the more important advances in skincare technology in recent years, but there's a lot of confusion as to what peptides are and how they work. Luckily, Dr. Schultz clears things up by explaining the crucial function of peptides in skin care and their purpose. Essentially, peptides are tiny proteins that communicate to different cells in order to help treat wrinkles, hyperpigmentation and brown spots. In layman's terms: Think of peptides as a messenger traveling to the appropriate cell to ensure that each cell is doing its job correctly. This is the important reason why more and more skin care lines are adding peptides into their formulas.