Night Shift. Some work is better done at night. Watch as Fekkai Advanced Ageless Overnight Hair Repair turn back the hands of time, giving your damaged locks the love and care they deserve. Repair Patch Technology renews and repairs damaged hair while you sleep and absorbs instantly into your hair no residue on your pillow. In addition, edelweiss provides broad spectrum protection from the harsh effects of the environment. Repairs hair. Protects hair from future damage. Especially suited for: Damaged Hair.