Revivogen MD Bio-Cleansing Shampoo and Conditioner Kit is a dermatologist-formulated hair care system specifically designed for fine and thinning hair. This sulfate and paraben-free formula provides gentle yet deep cleansing while being safe for daily use. Each bottle contains 360ml (12 fl oz) of product. The kit includes two identical bottles of the bio-cleansing shampoo formula. As a personal hygiene product, it should be stored at room temperature and kept out of direct sunlight. For external use only.