Discover Biolage Deep Treatment ColorLast Multi Use Hair Mask for instant gratification and total hair transformation. Highly concentrated in caring agents for healthier-feeling hair with each use. No more cold-water rinses or skipping shampoos to stretch out color vibrancy. Immediately after using this treatment, hair is 3X stronger** with up to 70% less breakage. This powerful hair mask prevents damaged, tangled ends and dull, faded color. Vegan formula and highly concentrated in plant-based emollients. Orchid and apricot seeds help color-treated hair retain moisture and help strengthen hair follicles. Small but mighty, each pack contains at least four applications. Easy to squeeze, our packs are 77% lighter than a container of the same size and perfectly sealed for a fresh application each time.