Toner specially designed to work in conjunction with the Keratin treatment. Ideal for grey, bleached or highlighted hair (shade 7 and lighter). Its specially formulated formula allows control, optimization and adaptation to toning levels (warm, neutral, cool) in blonde/grey hair, neutralising unwanted tones and nuances during the a-Keratin service. Active ingredients Fision kera veg: Vegan keratin. A complex of amino acids obtained from wheat and soy that perfectly replicates the basic characteristics of classic animal keratin. Glycolic Acid: Activates the straightening action of the product. Interacts with the hairs natural amino acids, beneficially modifying their structure. Hair is visibly rebuilt, strengthened and looks healthy. Instructions for use Add a-Keratin Tone Control to No2 Smoothing Fluid as shown below, depending on the desired result: For warm tones 5% For cool tones 15% For specialized tones (sands) from 20% to 30% To maintain the same tone level 10% Follow the a-keratin menu instructions depending on the service you choose.