K-pak Color Therapy Luster Lock Leave-In Treatment by Joico is a specialized hair care solution designed for hair that has undergone both bleaching and coloring processes. This treatment is part of the renowned K-PAK Color Therapy series, which is formulated to address the unique needs of double-processed hair. It works to enhance the vibrancy of your color while providing essential nourishment and protection, ensuring your hair looks and feels its best.

To use this leave-in treatment, simply apply it to clean, damp hair, focusing on the mid-lengths and ends where damage is often most pronounced. There's no need to rinse it out, allowing the product to continuously work its magic throughout the day. This treatment not only helps to lock in color but also adds a lustrous shine and smoothness, making your hair more manageable and resilient against daily styling and environmental stressors.