Available size: 13.5 oz / 400 ml Very dry hair requires more than a standard conditioner can deliver. Biolage Ultra HydraSource Conditioner is a deep hydration conditioner formulated specifically for severely dry or dehydrated hair, delivering intense moisture restoration that standard formulas cannot reach. When regular conditioners leave dry hair still feeling dry, this is the answer. Professional Benefits Intense hydration specifically formulated for very dry and severely dehydrated hair Restores deep moisture that standard conditioners fail to provide Improves softness and manageability in hair that resists normal conditioning Rich formula penetrates deeply for lasting moisture results Ideal for coarse, thick, or chemically processed hair with high dryness levels How to Use Apply generously to clean, towel-dried hair after shampooing Distribute thoroughly from roots to ends, focusing on driest sections Leave on for 5 minutes minimum.Cover with a shower cap and add gentle heat for maximum penetration Rinse thoroughly Use at every wash as part of the Ultra HydraSource intensive hydration routine Pro Tip: On wash days when heat styling follows, this deep hydration conditioner builds a moisture reserve in the hair fiber that holds up against thermal stress, reducing the drying damage heat tools cause over time.