Remember it is not a filler as one might think. It is a dermal filler that activates your own collagen. It is this collagen growth that creates the girth as it replaces the dermal filler. Same as used to fill wrinkles in skin and the like. At the end it is all you, no silicone or anything artificial. One of the reason I selected this technique, much more natural than silicone injections or inserts. .