Go blonder than ever before with the power of oil.

L'Oréal Professional Blond Studio Oil Developer works in harmony with Blond Studio 9 Lightening Powder to deliver up to 9 levels of lift. The oil boosts the shade lift and helps to keep results predictable.

The oil offers optimal mixing and application thanks to its creamy consistency. It also leaves hair feeling softer to the touch after shampooing and when dry.

Choose from 2 strengths, both designed to be mixed exclusively with Blond Studio 9 Lightening Powder:

• 20 vol (6%) is designed for on-scalp, lengths & ends.
• 30 vol (9%) is for lengths and ends only.

Available in 1000-ml bottles.