Thank you for your question. I think I can certainly help shed some light on your questions. I'm a Board-certified cosmetic surgeon, certified by the American Board of Cosmetic Surgery, and a Fellowship-trained oculofacial or oculoplastic surgeon. I’ve been practicing in Manhattan and Long Island for over 20 years and I've been very busy with the application of PRP for a variety of purposes, including facial rejuvenation. First of all, PRP is not a filler, nor is it a substitute for injectables. PRP, or platelet-rich plasma, is a material that is derived from your own blood and is a part of a wound-healing and regenerative technology designed to stimulate the growth of blood vessels and tissue and improve skin quality. This technology was first used in oral surgery and orthopedic surgery. With PRP, we stimulate the fat layers under the skin, as well as the collagen and blood supply in a particular area. By doing this, PRP creates volume, but in a diffuse manner. PRP also stimulates the production of collagen, giving the skin a unique glowing effect, which differentiates it from cosmetic fillers such as Juvederm or Restylane. In our practice, we use PRP for everything from lip enhancement, cheek enhancement, and even for structural volumizing in a procedure called the Y Lift®. When it comes to PRP treatment, we make sure to explain a few things to our patients. First is that PRP is devoid of any red blood cells, as these are separated during preparation, so the liquid is very clear. Another thing is that you may get a small bruise at the entry point of the needle, or in tiny pinpoint areas. These bruises can darken because its color absorbs more light and it can stimulate hyperpigmentation or darkening of the skin. Therefore, I always explain that you don't want to schedule something important in a social or professional way during this time when your face could potentially look a little bit swollen or bruised. Usually, the fluid from the injection is absorbed in 24 hours, so some people will try to work around that timeline. As far as the sun is concerned, I would say that it's fairly safe to be in the sun, but it’s important to use standard sun precautions, such as the wearing of sunblock, moisturizers with sunblock, hats, etc., particularly if you live in a place where it's sunny. It is common practice for our estheticians or technicians to apply sunblock on our patients after a treatment, if they need it. With that being said, I think you can move forward and meet with doctors who perform this procedure, so you can learn if it's right for you. I hope that was helpful and I wish you the best of luck! This personalized video answer to your question is posted on RealSelf and on YouTube. To provide you with a personal and expert response, we use the image(s) you submitted on RealSelf in the video, but with respect to your privacy, we only show the body feature in question so you are not personally identifiable. If you prefer not to have your video question visible on YouTube, please contact us.