Blond Studio Bonder Inside Purple Lightening Balm by L'Oréal Professionnel is an innovative lightening balm that combines three essential benefits in a single product: up to 8 levels of lightening, protection of the hair fiber, and an immediate anti-yellow effect thanks to its purple pigment. Its exclusive formula with Bonder Inside helps strengthen the hair's internal bonds during lightening, significantly reducing the risk of breakage. It is an advanced technical treatment that allows you to work with confidence even on the most fragile or sensitized hair, maintaining the hair structure intact. The true innovation lies in the product's purple nuance, which acts already during the lightening phase to neutralize unwanted warm tones. The result? A purer, cooler, and brighter blonde, right from the rinse, with less need for subsequent toning. The dense, creamy balm texture ensures even, precise, and comfortable application, without runny hair and offering complete control of the technical process. Ideal for freehand techniques, contouring, or localized work on mid-lengths and ends, where neutralization is crucial. Thanks to its 500g format, it is perfect for continuous and versatile professional use. It mixes easily with L'Oréal Professionnel developer (6 to 20 volumes), depending on the desired result and the type of hair being treated.