- PRP contains concentrated growth factors from a person's own blood that can stimulate collagen production and cell turnover when injected into the skin. This can lead to smoothing of fine lines, improved skin texture, elasticity and a youthful appearance.- One of the most popular uses of PRP is the "vampire facial", which involves topically applying PRP to the face after microneedling. The microneedling creates tiny injuries so the growth factors can penetrate better.- PRP injections are also often used for under-eye circles, hollows, and sagging skin. It may stimulate collagen to fill indentations and strengthen the dermis. Multiple treatments are usually needed.- For deeper folds, PRP can be injected into the actual crease itself. Some providers combine PRP with fillers like hyaluronic acid for a longer lasting effect.- Some dermatologists also offer PRP for issues like acne scars, enlarged pores, stretch marks, and thinning hair. However, evidence for these uses is still limited.- Redness, swelling, and tenderness are common immediate side effects of PRP facial treatments. Other risks include infection and allergic reaction in rare cases. - Results tend to develop gradually over several weeks. Most studies show benefits peak around 3 months after treatment and diminish over the following year or so. Maintenance sessions may help prolong the effects.- Overall, PRP is a safe, natural option for facial rejuvenation in trained hands. But results can be variable and more high quality studies are still needed on its efficacy.