If the procedure is carried out properly, the risks are low, except for people with blood-related medical issues, especially those which require blood-thinning medication. The microneedling causes temporary bleeding—hence the name "Vampire facial". Meanwhile, bruising, swelling, redness and pain may persist over the injection site, but these side effects usually disappear within a few days.
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But, you know what wasn’t disappointing? The day-three results. While the hours immediately following the hour-long appointment were characterized by an unsightly red, ultra-puffy complexion (which was really just exacerbated by the fact that I have sensitive skin), with the help of an even layer of Alastin Regenerating Skin Nectar (the post-treatment product Dr. Peredo told me to use for the next week), by day two it looked like I had a low-key sunburn and day three my skin looked radiant and refreshed. 
In laymen's terms: It's a facial that essentially uses, "your own blood to help promote the healthy activity of your skin cells," says Joshua Zeichner, the director of cosmetic and clinical research in dermatology at Mount Sinai Hospital in New York City. Our blood is comprised of red blood cells and serum, which contain our white blood cells and platelets.
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