L'Oréal Professional Blond Studio Oil Developer Peroxide:20 Vol adds shine and helps shield

adds shine and helps shield hair from the outside in

and hair that is prone to breakage

Creamy toffee fragrance

while maintaining the skin’s natural moisture balance

L'Oréal Professional Blond Studio Oil Developer Peroxide:20 Vol adds shine and helps shieldBlond Studio 9 Oil Developer is oil enriched to enhance the overall performance of the 9 level lightener. The oil is responsible for boosting the lift and keeping the lightener result predictable. It is our way to achieve up to 9 levels of lift, quicker, with lower volume developers. The oil base in the developer also offers optimal mixing and application due to its creamy consistency. DEVELOPMENT TIME: The development time for Blond Studio 9 is a