L'OREAL Blond Studio 9 Oil Developer 20 Vol

L'OREAL Blond Studio 9 Oil Developer 20 Vol is specially formulated with mineral oil for use exclusively with Blond Studio 9 Levels and 9 Levels Bonder Inside lightening powder. Its mineral oil formula reduces the lifting agents' volatility, resulting in improved hair cosmeticity and a smoother touch after shampoo and drying. This developer is perfect for clients with darker hair who want a lighter result, as it provides accelerated lift in the early stages of lightening and optimal neutralisation.