Processed Skin Cell Proteins (PSP) is an ingredient developed by Neocutis, a skin care brand that utilizes technology from Swiss scientists to create products that address common skin concerns such as hyperpigmentation, redness, and signs of aging. This ingredient was originally derived from a fetus that was electively aborted because the baby could not survive to term. The fetal skin cell line was taken from a piece of skin the size of a postage stamp and donated voluntarily by the parents for medical research. Neocutis insisted that the one donation would be sufficient for the manufacture of its products. 

Of course, due to the origin of this ingredient, there has been major controversy concerning Neocutis products. Neocutis argues that the fetal cell line was harvested in a responsible, ethical manner for use in treating severe dermatological injuries. Even though it is true that PSP was initially discovered for use in skin ulcers, burns, and scarring, Neocutis soon recognized the ingredient’s value in restoring aging skin. Anti-aging products with PSP are said to reduce signs of fine lines and wrinkles, hydrate the skin, and redefine the look of facial contours for a more youthful appearance.