Shampoo Treatment For Thinning Hair. Thickens And Conditions Hair In 15 Seconds Complete Mending Of Split Ends. Fast Foamy, Rich Lather, Acid Balanced. Thick'N Hair Shampoo Plus For Thinning Hair is time activated and will thicken and bodify all hair types in 15 seconds regardless of texture. Organic and natural products have been added to help moisturize and condition hair and scalp.