Beauty Comparison
Moroccanoil Overnight Leave-in Mask

Photo and link: Amazon

Moroccanoil

Overnight Leave-in Mask

hair mask · 50 ml · Haircare

Moroccanoil Overnight Leave-in Mask is free of drying alcohol, sulfates, parabens and MI / MCI, going by its full 52-ingredient list, with hyaluronic acid, glycerin and panthenol. List checked November 5, 2026.

The catch: it contains fragrance, essential oils (Camphor, Linalyl Acetate), labelled fragrance allergens (Linalool, Alpha-Isomethyl Ionone) and silicones (Dimethicone).

  • Contains fragrance
  • Contains essential oils
  • Contains labelled fragrance allergens
  • No drying alcohol
  • Sulfate-free
  • Contains silicones
  • Paraben-free
  • No MI/MCI

£18.00at Amazon UK

Amazon UK prices as of 6 November 2026, 05:32 GMT; Amazon sets the final price at checkout.

Listed in Amazon's stores in United Kingdom · Germany · France · Italy · Spain · Netherlands · Poland · Sweden; links take you to your own store.

Key ingredients in Overnight Leave-in Mask

  • Hyaluronic acid

    A humectant that helps hair hold moisture.

  • Glycerin

    A humectant that helps hair stay soft and hydrated.

  • Panthenol (pro-vitamin B5)

    Helps hair hold moisture and feel smoother.

  • Peptides

    Signal ingredients used in firming and anti-ageing formulas.

Full ingredient list, decoded

52 ingredients, in label order (highest amount first; below about 1% the order is free).

  1. 1Aqua/Water/EauAqua is the INCI name for water, the main base of many creams, lotions and cleansers…
  2. 2Caprylic/Capric TriglycerideA light, plant-derived oil made from coconut or palm kernel fatty acids and glycerin.…
  3. 3UndecaneUndecane is a colorless, oil-like liquid made of eleven carbon atoms in a straight…
  4. 4GlycerinGlycerin is a clear, thick, odorless liquid that pulls water into the skin and helps…
  5. 5TridecaneTridecane is a straight-chain hydrocarbon, a simple oil made of carbon and hydrogen. It…
  6. 6Cetearyl AlcoholA waxy fatty alcohol blend that thickens formulas and helps oil and water mix into…
  7. 7Parfum/FragranceParfum is the scent blend added to a product to give it its smell, often a mix of many…Fragrance
  8. 8PanthenolPanthenol is a form of vitamin B5 that the skin and hair convert to pantothenic acid.…
  9. 9Argania Spinosa (Argan) Kernel Oil
  10. 10Ximenia Americana (Sour Plum) Seed Oil
  11. 11Helianthus Annuus (Sunflower) Seed Wax
  12. 12Glyceryl StearateGlyceryl stearate is a waxy blend of glycerin and stearic acid, a fatty acid from plant…
  13. 13Jojoba EstersJojoba esters are a light, wax-like mix of long-chain fatty esters, derived from the…
  14. 14DimethiconeDimethicone is a silicone, a light, water-resistant oil that forms a smooth, breathable…Silicones
  15. 15XylitylglucosideXylitylglucoside is a plant-sugar-based humectant, made by joining xylitol, a sugar…
  16. 16Sodium PCASodium PCA is a salt that helps skin and hair hold water. It is a humectant, meaning it…
  17. 17Xanthan GumXanthan Gum is a thickener and stabilizer made by fermenting sugar with a bacterium. It…
  18. 18AnhydroxylitolAnhydroxylitol is a sugar-derived humectant, a type of ingredient that draws water into…
  19. 19Sodium Stearoyl GlutamateA mild emulsifier and cleansing agent made from a fatty acid and an amino acid. It…
  20. 20Butylene GlycolButylene Glycol is a clear, odorless liquid that attracts and holds water. It is a…
  21. 21PropanediolPropanediol is a clear liquid that draws water toward the skin. Its jobs are as a…
  22. 22XylitolXylitol is a plant-derived sugar alcohol that attracts and holds water in a formula.…
  23. 23EthylhexylglycerinEthylhexylglycerin is a lab-made, skin-friendly ingredient that boosts the power of…
  24. 24Ammonium Acryloyldimethyltaurate/VP CopolymerA synthetic polymer, a long chain-like molecule built from two building blocks, used…
  25. 25Polyglyceryl-10 Pentaisostearate
  26. 26Polyglycerin-3
  27. 27Beta-Glucan
  28. 28Althaea Officinalis (Marshmallow) Root Extract
  29. 29Sodium AcetateSodium acetate is the sodium salt of acetic acid, the sour compound found in vinegar.…
  30. 301,2-Hexanediol1,2-Hexanediol is a small, clear liquid that acts as a solvent, a humectant and a…
  31. 31Citric AcidCitric acid is a mild, naturally occurring acid found in citrus fruit. In skincare and…
  32. 32Helichrysum Stoechas (Mediterranean Strawflower) Flower Extract
  33. 33Sodium HyaluronateHyaluronic acid is a sugar-based molecule, naturally found in skin, that holds a lot of…
  34. 34Dipeptide-2
  35. 35Glycoproteins
  36. 36Hydrolyzed Glycosaminoglycans
  37. 37Copper Gluconate
  38. 38PhenoxyethanolA synthetic preservative that helps stop bacteria, yeast and mold from growing in…
  39. 39Potassium SorbatePotassium sorbate is the potassium salt of sorbic acid, a mild preservative that helps…
  40. 40Sodium BenzoateSodium benzoate is the sodium salt of benzoic acid, a water-soluble powder used mainly…
  41. 41LinaloolLinalool is a fragrance compound found naturally in flowers and herbs, and in skincare…Labelled fragrance allergens
  42. 42Alpha-Isomethyl IononeA synthetic fragrance ingredient with a soft floral, violet-like scent. Its main job is…Labelled fragrance allergens
  43. 43Evernia Prunastri (Oakmoss) ExtractLabelled fragrance allergens
  44. 44CamphorCamphor is a waxy white crystal with a strong, sharp scent. In cosmetics it is mainly…Essential oils
  45. 45CarvoneCarvone is a naturally occurring aroma compound found in spearmint and caraway oils. It…
  46. 46HexamethylindanopyranA synthetic musk used as a fragrance ingredient, its main job is to give products a…
  47. 47Linalyl AcetateLinalyl acetate is a fragrance ingredient, an ester found naturally in plants like…Essential oils
  48. 48Tetramethyl AcetyloctahydronaphthalenesA synthetic fragrance ingredient with a soft, woody-amber scent that helps give a…
  49. 49Eucalyptus Globulus OilEucalyptus Globulus Oil is a steam-distilled essential oil from blue gum eucalyptus…Essential oils
  50. 50Lavandula (Lavender) Oil/ExtractLavandula Oil/Extract is a fragrant oil or extract made from lavender flowers and plant…Essential oils
  51. 51Mentha Viridis (Spearmint) Leaf OilEssential oils
  52. 52Isoeugenyl Acetate. Moohm01

Source: Moroccanoil product page, uk.moroccanoil.com/products/overnight-leave-in-mask, retrieved November 5, 2026.

Every flag we check

CheckResultIngredients found
FragranceContainsParfum/Fragrance (#7)
Essential oilsContainsCamphor (#44), Linalyl Acetate (#47), Eucalyptus Globulus Oil (#49), Lavandula (Lavender) Oil/Extract (#50), Mentha Viridis (Spearmint) Leaf Oil (#51)
Labelled fragrance allergensContainsLinalool (#41), Alpha-Isomethyl Ionone (#42), Evernia Prunastri (Oakmoss) Extract (#43)
Drying alcoholNone listed—
SulfatesNone listed—
SiliconesContainsDimethicone (#14)
ParabensNone listed—
MI / MCINone listed—
Formaldehyde releasersNone listed—
Mineral oil & petrolatumNone listed—
LanolinNone listed—
Chemical UV filtersNone listed—

Frequently asked questions

Is Moroccanoil Overnight Leave-in Mask fragrance-free?

No. Moroccanoil Overnight Leave-in Mask contains Parfum/Fragrance (ingredient 7 of 52).

Does Moroccanoil Overnight Leave-in Mask contain silicones, sulfates or parabens?

Silicones: yes (Dimethicone). Sulfates: none listed. Parabens: none listed.

Which ingredient rules does Moroccanoil Overnight Leave-in Mask pass?

Its full list passes our ingredient rules for MI allergy, acne-prone skin, pregnancy and color-treated hair. Key ingredients: Hyaluronic acid, Glycerin, Panthenol (pro-vitamin B5) and Peptides.

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Amazon UK prices as of 6 November 2026, 05:32 GMT; Amazon sets the final price at checkout.