With just one treatment, Joico's deep-repairing K-PAK Color Therapy Luster Lock unlocks out-of-this-world color vibrancy, mirror-like shine, and strands that not only look healthier but are 9X stronger.*

Key Benefits:
Maintains over 82% of haircolor for up to 8 weeks*
Repairs & strengthens damaged hair**
Instantly 9X stronger hair***
Twice the shine+