YOLU Calm Night Repair Treatment is a Japanese overnight hair treatment designed to deeply repair and hydrate dry, damaged hair while you sleep. Its Moisture Night Repair Formula, enriched with ceramides and botanical extracts like Persian silk tree bark and lotus, penetrates each strand to lock in moisture, reduce friction damage, and restore smoothness. The calming neroli and peony fragrance enhances relaxation, making it ideal for those seeking manageable, silky hair and a soothing nighttime routine. Best for dry, brittle, or chemically treated hair.