Viviscal Professional Thin to Thick Shampoo gently cleanses hair while promoting healthy growth from the inside out. Ana:Tel, a proprietary complex derived from grape seeds and pea sprouts, helps encourage thicker looking hair, while biotin, collagen and keratin help nourish follicles. This Viviscal shampoo is free of parabens and artificial colors, making it gentle enough for all hair types and stages of thinning. For best results, use Thin to Thick Shampoo alongside Thin to Thick Conditioner, Thin to Thick Elixir and Volumizing Fibers.