The BLONDME Premium Lightener 9+ - with integrated Anti-Metal Bond Protection Technology is a powerful bleaching powder that provides optimal lightening with minimal hair breakage and lightens even the darkest starting bases. Premium Lightener 9+ provides up to 9 levels of lightening and enhanced neutralization for clear, cool blonde results and is suitable for all techniques and starting bases. Built-in Anti-Metal Bond Protection technology protects fiber bonds during the lightening process, helps create new bonds and provides minimized hair breakage.No bonding additives or anti-metal products required.Application: Mix with BLONDME Premium Developer 2% - 7 vol (with and without scalp contact) or 9% - 30 vol (without scalp contact) until a smooth consistency is achieved. Mixing ratio: 1:1.5 to 1:2.5Application time: 20-45 minutesDo not use additional heat from a hair sauna or a drying hood to shorten the application time. Apply directly after mixing to dry, unwashed hair. Even distribu