Click to expand Tap to zoom Joico - K-Pak Luster Lock Treatment 500ml by Joico Save 0% Save % Please register or login to view prices. SKU 155831 This deep-repairing wonder unlocks out-of-this-world colour vibrancy, mirror-like shine, and strands that not only look healthier but are 9X stronger. It’s no wonder it’s known as the “secret to lust-worthy locks.”