It is concentrated, to be used straight or dilute 20 to 1;As it is massaged in, the formula will dissolve mineral and chemical buildup deposited by water. After rinsing, the hair will be left in an ultra clean, almost virgin state;Silk and pantheon penetrate hair and skin, moisturizing and adding body to hair;It is long lasting, neutralizing the hair by demineralizing, it can last for more than a week depending on the water you use and what other treatments are put on the hair after neutralization;The formula is very concentrated and a small amount goes a long way