Pump up flat, lifeless strands with HASK's Biotin Boost Thickening Cream. A plumping trio of biotin, collagen and coffee helps enhance the appearance of thicker hair. Strands never feel heavy, sticky or stiff. Hair bounces with healthy shine, visible volume and luxurious lift. Free of sulfates, parabens, phthalates, gluten, drying alcohol and artificial colors.