PREJUVA® constitutes a buffered physiological solution of high molecular weight (H-HA) and low molecular weight (L-HA) HA. PREJUVA®, profhilo alternative, is the 'acceptable injectable'. It is the new injectable on the block which targets dullness and all the things we have to look forward to as we age, like lines and wrinkles, skin laxity and skin laxity/ loss of fullness (sigh).