Kevin Murphy Night Shift

An overnight serum for hair, left in rather than rinsed out. Hyaluronic acid draws moisture to the hair shaft and holds it there, which is what gives the claimed 12 hours of hydration while you sleep.

Kakadu plum, an antioxidant-rich native Australian fruit, is worked in alongside it. The formula is light enough to absorb into each strand overnight rather than sit on top of it, which is how Kevin Murphy gets to hair that tests twice as strong and three times smoother by morning.

Apply to dry or towel dried hair before bed, no rinsing needed. One size, works as a no-effort step for anyone whose hair needs more moisture than a day product can give it.