ENERGIZING Overnight Serum is a nighttime treatment inspired by your body’s natural rhythm. While you sleep, your hair and scalp shift into repair mode, making it the perfect time to restore strength and vitality. Applied overnight, this lightweight leave-in serum supports your hair when it’s most receptive. It is 3x more effective in reducing hair breakage, helping to minimize hair fall caused by breakage, while strengthening fragile strands, boosting overnight regeneration, hydrating the scalp and lengths, and helping protect against signs of scalp aging.