Schwarzkopf Igora Oil Developer 9% / 30 Vol, 33.81 oz

Schwarzkopf Igora Oil Developer 9% / 30 Vol, 33.81 oz is a developer for use with compatible hair color products during measured salon or at-home color preparation. Its 9% / 30 Vol designation should be used only according to the compatible color product instructions. Follow directions for mixing proportions, application method, and processing time. Wear gloves and protect clothing, skin, and nearby work surfaces before preparing the mixture. Mix only the amount needed in a suitable container when directed, then apply and rinse according to instructions. Keep the bottle tightly closed, upright, and stored safely with related hair color supplies between uses.