The protective prowess of our bestselling Luster Lock Treatment meets the ease of a spray for spectacularly shiny, healthy-looking hair that resists breakage and stays vibrant longer.- Locks in over 82% of color vibrancy for up to 8 weeks*- 2X stronger hair**- Protects from heat styling- Instant detangling- Controls frizz and boosts shine- UVA/UVB protection for haircolor*Using K-PAK Color Therapy Shampoo after 18 washes**Against combing breakage on damaged hair vs. a non-conditioning shampoo