Peptides are amino acids that make up the proteins in the skin to help maintain the skin overall function and health. Peptides in skin care work by helping to boost the skin's natural communication system. This system is responsible for sending signals between skin cells, which tells them what to do. Peptides can help to reverse the damage that is caused by a decline in the skin's natural communication system. They can also help to repair problem areas and prevent more communication issues from occurring. In this way, peptides can help to decrease uneven texture, reduce wrinkles and fine lines, and improve the overall appearance of the complexion.