Night hair care with hyaluronic acid first. Get intensive hair care at night with a formula enriched with Hyaluronic Acid, instantly hydrating hair and locking in moisture while you sleep without making it limp. Feel the sensation of hair that is softer, easier to manage and less tangled when you wake up in the morning. 4x more moisturizing for hair the secret behind moisturizing night cream with overnight technology. Friction of your hair with your pillow while you sleep can cause your hair to become tangled and tend to dry out.