Kenra Color Simply Blonde Base Breaker Cool provides up to 1 level of lift in 5 minutes. This one-step base breaker gently lifts helps neutralize warm tones. Ideal for most hair types and untreated hair for a subtle base change. Recommended for levels 7 and above. Neutralizing to soften blend. Lifts up to 1 level in 5 minutes. Quickly lifts base while neutralizing to soften blend. Blonding you can trust