The Moroccanoil Overnight Hydrating Leave-In Hair Mask Treatment Serum is a brand new overnight hair mask featuring supercharged hyaluronic acid and vegan snail mucin that leaves hair four times more hydrated. Keep on reading to find out more…
BUY HERE: Harrods / Sephora / Lookfantastic
Moroccanoil Overnight Hydrating Leave-In Hair Mask claims to increase your hair’s hydration by 4 x overnight, and your hair will keep the hydration for up to three washes, so it doesn’t like a treatment you use and lose the benefits as soon as you wash your hair.
When applied, the leave-in hair mask makes your hair 3 x easier to detangle the following morning, as well as reducing frizz, minimizing the appearance of split ends, and helps to prevent your hair tangling while you sleep.
Moroccanoil carried out a consumer study in which 98% of the people that participated loved how easy it was to use, 96% of them agreed their hair looked and felt healthy, 94% noticed lasting smoothness and 94% agreed it was comfortable to sleep in.
Although it’s a deeply nourishing leave-in hair mask, it doesn’t leave any greasy residue behind or feel heavy.
Key Ingredients
- Argan Oil: Rich in vitamin E and antioxidants, this natural oil nourishes.
- Supercharged Hyaluronic Acid: A blend of seven molecular weights of hyaluronic acid for maximum hydration.
- Vegan Snail Mucin: Bio-engineered vegan alternative helps seal the cuticle and lock in moisture.
When it comes to application, you can apply the Moroccanoil Overnight Hydrating Leave-In Hair Mask to both damp or dry hair, and you should apply from your mid-lengths to ends before bed, without rinsing.
The amount of product you should use will depend on your hair type:
- Fine hair – use 1 to 2 pumps
- Medium hair – use 2 to 3 pumps
- Thick or curly hair – use 3 to 4 pumps
The mask can even be applied to your hair during the day, whenever you need extra moisture.
There are two different sizes of the mask available;
- Moroccanoil Overnight Leave-In Mask 120ml / 4 fl oz — $44
- Moroccanoil Overnight Leave-In Mask 50ml / 1.7 fl oz — $20
BUY HERE: Harrods / Sephora / Lookfantastic


