The Goldwell Light Dimensions SilkLift Control is a professional high-performance hair lightener that lifts up to 7 levels while neutralizing warm undertones in a single step. Integrated Control: Built-in toning pigments actively counteract unwanted warmth during the lightening process Targeted Lift: Provides up to 7 levels of reliable, controlled lift Hair Protection: Formulated with protective technologies to maintain hair integrity and softness HOW TO USE Mixing: Blend the powder lightener with the designated SilkLift conditioning developer and the SilkLift 2-in-1 serum.Processing: Apply to dry hair and process at room temperature for 10 to 45 minutes.Precautions: Do not use any heat source, and monitor the development every 5 to 10 minutes.