Schwarzkopf Color Boost Vibrancy Booster, Dark Cool

Box will show signs of wear, but item is brand new, never used

- in-shower customizable color vibrancy booster to be mixed in with your favorite conditioner

- let you customize your color intensity (1 drop = minimal boost, 5 drops = maximum boost)

- can enhance color vibrancy between salon visits or colorings

- offers an easy solution to increase the intensity of your hair color. Just mix 1-5 drops into your conditioner

- no ammonia, no peroxide, no alcohol, just color

- 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)