L'Oréal Professional Blond Studio Oil Developer Peroxide:20 Vol and hair that is prone

and hair that is prone to breakage

With its Transactiv Delivery System 2

The water soluble formula contains a combination of beeswax

A strong yet lightweight mousse designed to add volume

L'Oréal Professional Blond Studio Oil Developer Peroxide:20 Vol and hair that is proneBlond 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