Toppek Shampoo (Toppik Brand) is a hair building shampoo that works with Toppek Conditioner to thicken your hair with a unique complex of Keritan proteins. Toppek Shampoo will dilate every hair shaft to allow maximum penetration of this concentrated protein formula. You will instantly see a dramatic thickening of your hairs' diameter. Use every day for continued thickening and protein enhancement. Directions - Wet your hair thoroughly. Apply Toppek Shampoo and lather. After thirty seconds rinse thoroughly. Follow with Toppek Keratinized Hair Building Conditioner to lock in the added thickness. For best results use both products every time you shampoo.