BOOST YOUR COLOR: Schwarzkopf Color Boost is an in-shower customizable color vibrancy booster to be mixed in with your favorite conditionerCUSTOMIZE YOUR INTENSITY: Color Boost color drops let you customize your color intensity (1 drop = minimal boost, 5 drops = maximum boost)ENHANCE COLOR VIBRANCY: With Color Boost you can enhance color vibrancy between salon visits or colorings.EASY TO USE: Color Boost offers an easy solution to revive the intensity of your hair color. Just mix 1-5 drops into your conditioner.AMMONIA FREE: No ammonia, no peroxide, no alcohol, just color.SEMI-PERMANENT: Last up to 20 washes (semi-permanent - Results may vary depending on the number of drops used and daily care habits, hair history and texture)

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