Blond Studio bleaching products by L'Oréal Professionnel. In this category, all the bleaching products you want are available: bleaching powder (up to 8 tones of lightening), bleaching paste (up to 6 tones of lightening) or bleaching oil for a more natural effect (up to to 2 tones of lightening). Choose the product you prefer to work with and achieve the most beautiful blondes in your hair salon. L'Oréal Professionnel and its Blond Studio range also offers post-bleaching shampoos and other treatments. Blond Studio is therefore your ally throughout the bleaching process.