Derived from purified donated fat (cadavers), creates honey comb like matrix one injected. Over the next couple months gradually replaced by your own fat- restoring volume loss. Contains same growth factors, proteins, collagen found in your own fat so your body won't react to it as a foreign substance'. Used for non-surgical Brazilian Butt Lift, small aesthetic defects such a cellulite, dimples, lipo irregularities, loss of volume. Once fat has replaced Renuva, results are permanent.