YOLU Relax Night Repair Treatment Refill is an overnight hair treatment that repairs and smooths frizzy or damaged hair while you sleep. Formulated with night keratin and CMC similar repair ingredients it restores moisture balance and seals in nourishing serum to protect against friction and dryness. Lightweight yet deeply moisturizing it leaves hair soft, manageable and noticeably smoother by morning. Pear and geranium scent adds a calming bedtime aroma. Best for dry, frizzy or heat damaged hair and for anyone who wants low effort nightly repair to wake up with silky, tangle free hair.