There has been a lot of research suggesting how PRP works on damaged skin and wrinkles. A September 2017 study in the Aesthetic surgery journal (1
) found that after an injection of PRP (Platelet Rich Plasma, see video below), doctors observed an increase of reticular dermis thickness (the lower of the two layers of the dermis (skin)). This thickening of the skin was caused by deposition of elastic fibers (the stuff of skin elasticity) and collagen, with a fibrotic aspect (skin regeneration).
The researchers concluded: "PRP injection could lead to trophic (bringing blood) alteration of the skin and the precocious (premature) aging process."