Amplify BFF Dry Shampoo is part of a complete line of care products for Amplify Hair Extensions. This keratin-infused dry shampoo freshens and revitalizes hair between shampoos. The unique formula adds volume while repairing, strengthening, and moisturizing hair. BFF Dry Shampoo is color-free and talc-free so no need to worry about visible residue if you have darker hair. To use BFF spray directly on to the root area of hair in small sections and gently work product through hair using your fingers or a brush to evenly distribute. The 7 oz bottle is 2 oz more than a standard dry shampoo bottle making this product a great value!