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Highlights
Summary
An overnight hair mask featuring supercharged hyaluronic acid and vegan snail mucin that leaves hair 4x more hydrated and 3x easier to detangle.*
Benefits
- Increases hydration by 4x overnight*
- Hydration lasts for 3 washes*
- Hair is 3x easier to detangle in the morning*
- *Based on instrumental testing after 8 hours.
Research Results
- In a consumer study: 98% loved how easy the mask is to use
- 96% agreed hair looks and feels healthy
- 94% agreed hair has lasting smoothness
- 94% agreed this mask is comfortable to sleep in
Key Ingredients
- Argan Oil: extremely rich in tocopherols (Vitamin E), essential fatty acids, and antioxidants, this natural oil helps to nourish.
- Supercharged Hyaluronic Acid: a blend of seven molecular weights of hyaluronic acid to ensure maximum hydration, nourish and soften the hair, and help to enhance elasticity.
- Vegan Snail Mucin: a bio-engineered snail mucin alternative made from vegan sources, this K-beauty star helps condition and hydrate hair by replicating the healing and regenerative properties of snail’s mucin, helping to seal the cuticle and lock in moisture.
Item 2662364
Apply to damp or dry hair before bedtime, from mid-length to ends. No rinsing necessary. For fine hair, use 1--2 pumps. For medium hair, use 2--3 pumps. For thick or curly hair, use 3--4 pumps. Can also be used as a daytime treatment, especially for second-day or third-day hair to provide an instant boost of hydration.
Precautions: Use product only as directed. Avoid contact with eyes. In case of contact, rinse immediately with water. For external use only. Do not swallow.
Aqua/Water/Eau, Caprylic/Capric Triglyceride, Undecane, Glycerin, Tridecane, Cetearyl Alcohol, Parfum/Fragrance, Panthenol, Argania Spinosa (Argan) Kernel Oil, Ximenia Americana (Sour Plum) Seed Oil, Helianthus Annuus (Sunflower) Seed Wax, Glyceryl Stearate, Jojoba Esters, Dimethicone, Xylitylglucoside, Sodium Pca, Xanthan Gum, Anhydroxylitol, Sodium Stearoyl Glutamate, Butylene Glycol Propanediol, Xylitol, Ethylhexylglycerin, Ammonium Acryloyldimethyltaurate/Vp Copolymer, Polyglyceryl-10 Pentaisostearate, Polyglycerin-3, Beta-Glucan, Althaea Officinalis (Marshmallow) Root Extract, Sodium Acetate, 1,2-Hexanediol, Citric Acid, Helichrysum Stoechas (Mediterranean Strawflower) Flower Extract, Sodium Hyaluronate, Dipeptide-2, Glycoproteins, Hydrolyzed Glycosaminoglycans, Copper Gluconate, Phenoxyethanol, Potassium Sorbate, Sodium Benzoate, Linalool, Alpha-Isomethyl Ionone, Evernia Prunastri (Oakmoss) Extract, Camphor, Carvone, Hexamethylindanopyran, Linalyl Acetate, Tetramethyl Acetyloctahydronaphthalenes, Eucalyptus Globulus Oil, Lavandula (Lavender) Oil/Extract, Mentha Viridis (Spearmint) Leaf Oil, Isoeugenyl Acetate.
This brand is excluded from most Ulta Beauty coupons.
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Reviews
Review Snapshot
by PowerReviews
Ratings Distribution
Most Helpful Positive Review
Game Changer for My Highlighted, Dry Hair!
I absolutely love this Overnight Leave-In Hair Mask! I have highlighted hair, and my ends tend to get quite dry from coloring, so I'm always looking for products that provide extra hydration without weighing my hair down. This mask has really helped! My hair feels noticeably softer, smoother, and mo...
Most Helpful Critical Review
Didn't do much for frizz
This product was gifted by moroccanoil in return for my honest feedback. I liked how soft and smooth my hair felt after using this mask, but unfortunately it didn't do much for my frizz. I was hoping for a little more smoothing and frizz control, so overall it was just okay for me.
166 results
Love this brand!
As a professional hairstylist, this brand has been a staple for years! Everything from the signature salon scent to the quality ingredients is pure nostalgia. This leave in conditioner is no exception to the salon quality. My hair is soft, more manageable, and detangling was a breeze. I would highly recommend this product and especially this brand! Gifted by moroccanoil
Loved it
Obsessed with how nice and soft my hair felt afterwards. I have very damaged hair and I thought nothing else could help. But I definitely quickly became a big fan of this product. It was gifted by Moroccan oil in exchange for my honest review.
I love this for dry hair
I was gifted by moroccanoil and I can honestly say this product is absolutely incredible. It smells impeccable and makes my hair feel nourished. I'll be repurchasing full size. This is great for dry hair
I would buy again!!
I was gifted this product by moroccanoil but genuinely will buy again with my own money. It makes my hair feel so soft and shiny! And it doesn't make my hair feel sticky at all. It smells good too! Definitely will be buying again. #gifted by moroccanoil

Leave In treatment
Complimentary from Moroccanoil. The Moroccanoil Overnight Leave-In Mask has really helped with my dry hair! It's easier to detangle and brush through in the morning, leaving my hair feeling softer and looking smoother with less frizz. It has a lightweight consistency, so I only need a small amount, and it lasts me up to 3 washes!