Treat dry hair to the replenishing properties of the Biolage Hydra Source Deep Treatment Pack, an indulgent hair treatment in easy-to-squeeze packaging. Perfect for dry, dull hair, the deeply transformative hair treatment works to restore and strengthen the appearance of lengths. Packed with plant-based emollients, the hair mask contains aloe, known for its ability to restore elasticity, and spirulina, an ingredient favoured for its strengthening properties.