Ultimate treatment deep treatment is an advanced delivery system that carries powerful vitamins proteins and healing products to the hair for optimal conditioning this targeted delivery system is designed to be used with step 2a moisture power booster or step 2a volume power booster for intense conditioning dispense deep treatment into your hands with 2 or 3 pumps of your chosen power boosters emulsify and distribute mixture thoroughly into hair leave in for 3 to 5 minutes to allow nutrient