Extra Volume Conditioner. Vitamins A, C and E Plant Proteins Paraben Free JASON Thin to Thick Extra Volume Conditioner adds boz., body and shine to fine, limp hair. This strengthening conditioner combines Panthenol and Biotin with nourishing Vitamins A, C and E to smooth hair, improve manageability and help prevent fly-aways and split ends. Helps give hair extraordinary volume, softness and luster. Free Of Parabens.