Debreen is a soapless, non-irritating water cleanser for the removal of sebaceous debris (dandruff). Debreen is an instant treatment to put the oils back into the hair and scalp without a heating cap. It is self penetrating. Apply to scalp after wetting hair – massage – leave in at least 1/2 hour before shampooing or longer depending on condition of hair. Leave the Debreen treatment in hair overnight (sleep in a shower cap) when making the transition from braids, twist, knots, or natural to a smooth hair style. Shampoo hair the next day following Alternative Shampoo instructions. Use this treatment for one or two hairdos until the hair starts holding a press for 2 weeks or more. Skip step 2 of Alternative Shampoo instructions. (6 oz.)