DEVELOPERS are special oxidative emulsions to use with a coloring system or with Natural Choice Colors bleaching powders. They have a double action. They bleach the natural hair's pigment cells, and at the same time they 'develop' the pigments contaned in the coloring product. THE DEVELOPERS have a rich creamy formula that does not trickle. Acid pH 4,0 for the alkalinity rebalancing. It bleaches of 5 levels your natural hair, in 2 levels your colored hair. Easily removable from skin. 12 volumes. Enriched with protective, polishing and untangling substances that rebalance the formula's pH and protect your scalp during the leave on time.