Overnight Leave-In Mask

Overnight Leave-In Mask

For all hair types

Regular price £39.00
Regular price Sale price £39.00
Unit price £32.50  per  100ml

Including VAT, excluding shipping

Sale Out of Stock

A lightweight, no-rinse formula for 4x more hydrated, easier-to-detangle hair by morning.*

size

Overnight Leave-In Mask

For all hair types

£39.00 (£32.50/100ml)

Including VAT, excluding shipping

  • Argan Oil
    Argan Oil

    Extremely rich in tocopherols (Vitamin E), essential fatty acids, and antioxidants, this natural oil helps to nourish.

  • Supercharged Hyaluronic Acid
    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
    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.

FAQ

How do I use Overnight Leave-in Mask?

Before bed, apply to damp or dry hair from mid-length to ends. Use 1–2 pumps for fine hair, 2–3 for medium, and 3–4 for thick or curly hair. Leave in overnight and style as usual in the morning.

Do I need to rinse it out the next morning?

No. It's a leave-in, so it stays in overnight with no rinsing necessary. Just wake up and style as usual.

Will it leave my hair feeling greasy?

No. Applied to mid-lengths and ends as directed, the weightless formula absorbs without leaving a heavy or greasy feel, or residue on your pillow.

Is it suitable for all hair types?

Yes. It's made for all hair types, and it's especially suited to dry, dull, or dehydrated hair in need of hydration.

What are the key ingredients, and what do they do?

Argan oil helps to nourish, supercharged hyaluronic acid (a blend of seven molecular weights) helps hydrate and soften, and vegan snail mucin helps condition and helps seal the cuticle to lock in moisture. The formula is vegan and cruelty-free.

Can I use it alongside my regular conditioner and leave-in?

Yes. It's a no-rinse overnight step that fits into your existing routine rather than replacing your daily products. Use your usual conditioner and leave-in as normal, and apply the mask at night when hair wants extra hydration.

Overall rating: 4.510638 / 5 from 47 reviews.

AI Generated Review Summary

The Morccanoil Overnight Leave-In Mask transforms hair while you sleep, offering intense hydration and nourishment. It reduces frizz, minimizes split ends, and prevents tangles, leaving hair soft, smooth, and manageable. The product's heavenly scent and comfort during sleep are also highly appreciated by users.

Summary topics

  • Product Scent (35%): A substantial number of customers brought up that the product smells amazing and has a heavenly Moroccan Oil scent.
  • Hair Texture (60%): Many customers raved about how this product made their hair soft, smooth, and more manageable.
  • Hair Appearance (15%): The feedback is varied, the hair looks fresh, supple, and healthier without feeling weighed down or greasy.
  • Hair Feel (40%): A significant amount of customers expressed appreciation for how this product left their hair incredibly soft and smooth.

Review topics: ["feeling","hair","look","smells","results","use","mask","structure"].

Review highlights

  • "My hair felt silky and soft after only one use." — Kimberly
  • "Fantastic product, hair feels and smells amazing after use." — Emma B.
  • "In the morning, the hair looks fresh and supple." — Tina B.

Reviews

Good hydration, not fully convinced yet

"It does keep my hair nicely hydrated without weighing it down, and it seems to help somewhat with frizz. So far, I’ve only tried it on my naturally curly hair, where the results are decent but not outstanding. I’d like to try it again when I straighten my hair before deciding how well it really works for me."

— Δήμητρα Σ. (4/5)

Je suis trop fan de

"Je suis trop fan de cette odeur, et dans mes cheveux c’est…. mummmm J’ai les cheveux fins et cassants Au réveil ils sont doux et avec cette texture légère ils ne sont pas du tout lourds ni gras. Je prends l’habitude de mettre un soin sur mes cheveux le soir comme je le fais pour ma peau et ils sont nourris. Je fais une tresse large et le lendemain j’ai l’impression d’avoir meme moins de frisottis. Je suis fan de votre marque j’adore !"

— CARINE L. (5/5)

Perfekte Pflege für meine Naturlocken

"Dieses Produkt hat noch in meiner Pflege-Serie gefehlt. Perfekte Pflege für meine Naturlocken. Über Nacht werden die Haare mit reichhaltiger Feuchtigkeit versorgt. Am Morgen sehen die Haare frisch und geschmeidig aus. Meine Naturlocken sind gebändigt und lassen sich leicht wieder in die gewünschte Form bringen. Ich bin begeistert."

— Tina B. (5/5)

Absolutely Love This Overnight Mask!

"I absolutely love the Moroccanoil Overnight Leave-In Mask! I’ve recently been wearing my hair straight, and this product has made such a noticeable difference. I apply it before bed, and when I style my hair the next day, it feels incredibly soft, smooth, and hydrated. It helps keep my hair frizz-free and silky smooth, and the shine is absolutely beautiful! My hair looks healthier, feels softer, and has that gorgeous, polished look without feeling weighed down or greasy. I also love that I can use it overnight without having to rinse it out. It gives my hair that extra boost of moisture while I sleep, and the results are amazing. And, of course, the Moroccanoil scent is heavenly! 💕 If you want smoother, softer, shinier, more manageable hair, I highly recommend this product. It’s definitely a new favorite in my hair routine! 10/10!"

— Lara G. (5/5)

Ok product, smells great, but doesn’t do much for my hair.

"Let me start by saying, I absolutely LOVE this brand! However, this product did not live up to my expectation. It smells great, but it didn’t do much for my hair as far as leaving it feeling any different. The shampoo, conditioner, and oil work fantastic for me, but this, not so much."

— Amy W. (2/5)

LOVE This!

"This overnight mask is truly remarkable! At first, I was concerned that it might make my hair feel greasy or weigh it down with heavy product. However, I was pleasantly surprised. The formula is incredibly lightweight, and it absorbed into my hair while I slept. When I woke up, my hair felt incredibly soft, smooth, and revitalized. It’s a game changer for my nighttime routine!"

— Roseann (5/5)

"Items missing. Contacted you days ago on receipt. No response. I’d like to return what ive received for refund and i’ll revert to ordering KERASTASE off lookfantastic and boots who send everything and reply to messages."

— Joanne (1/5)

Making a difference

"Noticing a huge improvement in my curls lasting and keeping my hair very soft throughout the week without weighing my hair down. I use it every other day and find this to be plenty."

— Yasmin R. (5/5)

Just amazing

"I love this. It smells good. It's good for scrunching into curly hair to refresh curls. Leaves no residue. Not greasy. Just amazing."

— Salma R. (5/5)

Blown Away by this product!!

"I love MO, so I decided to try the new product. I didn't have high expectations because I thought it might feel/look too heavy/greasy, but I was wrong! I used it once and received so many compliments. It smells amazing, lasts for days, and helped with my hair frizz. I don't wear my hair down often in the summer since it will frizz, but now I can when I use this! It feels super healthy after, and I'm excited to wear my hair naturally more."

— Jackie (5/5)

Q&A

YOUR GIFT IS WAITING*

*FREE Get a paddle brush on all orders £55+

Transform your hair while you sleep with Morccanoil Overnight Leave-in Mask—the ultimate solution for dry, dehydrated strands. This leave-in mask makes your morning routine effortless by reducing frizz, minimizing split ends, and preventing tangles while you sleep for lasting smoothness. Powered by argan oil, supercharged hyaluronic acid, and vegan snail mucin, this overnight treatment works while you sleep, leaving hair beautifully conditioned and touchably soft, with a healthy-looking shine. The weightless formula delivers intense hydration and deep nourishment without leaving residue on your hair or pillow.

 

Increases hydration by 4x overnight*

Hydration lasts for 3 washes**

Hair is 3x easier to detangle in the morning*

 

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

 

*Based on instrumental testing after eight hours.

**Based on an independent lab study.

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. MOOHM01

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.

Stylist Tip:
Can also be used as a daytime treatment, especially for second-day or third-day hair to provide an instant boost of hydration.