Reborn is made of PLLA Poly L-lactic acid. PLLA is FDA approved material which is safe to use for cosmetic purpose. Reborn helps gradually replace lost collagen - an underlying cause of facial aging - for results that can last more than two years. As a poly-L- lactic acid (PLLA) collagen stimulator, Reborn is different. It works with your body within the deep dermis, rather than topically, to help revitalize collagen production and help restore your skin's inner structure and volume. Reborn plla dermal filler has five specifications:150mg/240mg/360mg/500mg/800mg. 800mg is a new content. It is special for body contouring. It has 800mg poly l-lactic acid. It can make breasts augmentation, buttocks enhancement, fill stretch marks, remove deep wrinkles, plump knees, etc. It only needs shake 5-10 minutes can be mixed well to inject by 27 gauge cannula or 32 gauge sharp needle. 800mg super content for body contouring.