Our review
A rinse-off hair mask with a cationic conditioner, a quaternised silicone, activated charcoal and kaolin – cleansing-themed but primarily conditioning; preserved with MI/MCI, which some people need to avoid.

Packaging and what the product is
The manufacturer’s photo shows a black jar with a gold label reading “Nanoil Hair Mask – Charcoal & White Clay”, staged next to pieces of charcoal. It is a rinse-off conditioning mask from Nanoil’s hair mask range.
Ingredient analysis
The conditioning core is cetearyl alcohol with Cetrimonium Chloride (a cationic surfactant that detangles and reduces static) and Silicone Quaternium-16, a conditioning silicone that binds to damaged areas of the hair. Glycerin, panthenol and hydrolysed sericin (a silk protein) add moisture and smoothness.
The theme of the mask comes from Charcoal Powder (activated carbon) and Kaolin (white clay), which can adsorb oil and residues, and from Porphyra umbilicalis (red seaweed) extract. Retinyl palmitate, tocopherol and linoleic acid are present in small amounts.
What to watch out for
The mask is preserved with Methylchloroisothiazolinone and Methylisothiazolinone (MCI/MI). In the EU they are allowed only in rinse-off products and at very low concentrations, but they are frequent contact allergens – people with a known MI allergy should avoid this product. It also contains parfum with benzyl salicylate, limonene and hexyl cinnamal. Rinse thoroughly and avoid contact with the eyes.
What users say
We found many reviews of other Nanoil masks but none we could confirm for this charcoal version, so we do not give a rating.
Who it may suit
Normal to oily hair or scalps that like a light, detangling mask with a “clean” feel. Not for people allergic to MI/MCI or sensitive to fragrance.
Editorial review by INCIMondo based on the ingredient list and publicly available opinions. Not medical advice. · 2026-11-01
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The ingredient list comes from the manufacturer’s website (date below). Formulas change and can differ between markets – the label of the product you buy is decisive.
Ingredients
- AQUA · Solvent
- CETEARYL ALCOHOL · Skin conditioning – emollient, Surfactant – emulsifying, Emulsion stabilising
- CETRIMONIUM CHLORIDE · Antimicrobial, Antistatic, Surfactant – emulsifyingEU restrictions
- SILICONE QUATERNIUM-16 · Hair conditioning, Skin conditioning
- UNDECETH-11 · Skin conditioning – emollient, Surfactant – emulsifying, Skin conditioning
- BUTYLOCTANOL · Humectant, Solvent
- UNDECETH-5 · Surfactant – emulsifying, Surfactant – cleansing
- CHARCOAL POWDER · Abrasive, Absorbent, Opacifying
- GLYCERIN · Denaturant, Hair conditioning, Humectant
- PORPHYRA UMBILICALIS EXTRACT · Skin conditioning
- CAESALPINIA SPINOSA GUM · Film forming, Skin conditioning, Viscosity controlling
- KAOLIN · Abrasive, Absorbent, AnticakingEU restrictions
- PANTHENOL · Antistatic, Hair conditioning, Skin conditioning
- PROPYLENE GLYCOL · Humectant, Fragrance, Solvent
- POLYSORBATE 20 · Surfactant – emulsifying, Surfactant – cleansing
- PEG-20 GLYCERYL LAURATE · Surfactant – emulsifying, Surfactant – cleansing
- TOCOPHEROL · Antioxidant, Fragrance, Skin conditioning – miscellaneous
- LINOLEIC ACID · Antistatic, Cleansing, Skin conditioning – emollient
- RETINYL PALMITATE · Skin conditioning – miscellaneousEU restrictions
- HYDROLYZED SERICIN · Hair conditioning, Skin conditioning
- CITRIC ACID · Buffering, Chelating, FragranceEU restrictions
- PARFUM · Fragrance, Perfuming
- DIETHYLHEXYL SYRINGYLIDENEMALONATE · Skin protecting
- CAPRYLIC/CAPRIC TRIGLYCERIDE · Fragrance, Solvent, Perfuming
- METHYLCHLOROISOTHIAZOLINONE · PreservativeEU restrictions
- METHYLISOTHIAZOLINONE · PreservativeEU restrictions
- PHENOXYETHANOL · Antimicrobial, PreservativeEU restrictions
- ETHYLHEXYLGLYCERIN · Deodorant, Skin conditioning
- POTASSIUM SORBATE · Fragrance, PreservativeEU restrictions
- SODIUM BENZOATE · Anticorrosive, Fragrance, PreservativeEU restrictions
- BENZYL SALICYLATE · Perfuming, Light stabilizerEU restrictions
- LIMONENE · Deodorant, Solvent, PerfumingEU restrictions
- HEXYL CINNAMAL · PerfumingEU restrictions
An INCI list does not reveal exact concentrations.
Ingredient list as published
Aqua, Cetearyl Alcohol, Cetrimonium Chloride, Silicone Quaternium-16, Undeceth-11, Butyloctanol, Undeceth-5, Charcoal Powder (Activated Carbon), Glycerin, Porphyra Umbilicalis Extract, Caesalpinia Spinosa Gum, Kaolin, Panthenol, Propylene Glycol, Polysorbate 20, PEG-20 Glyceryl Laurate, Tocopherol, Linoleic Acid, Retinyl Palmitate, Hydrolyzed Sericin, Citric Acid, Parfum, Diethylhexyl Syringylidenemalonate, Caprylic/Capric Triglyceride, Methylchloroisothiazolinone, Methylisothiazolinone, Phenoxyethanol, Ethylhexylglycerin, Potassium Sorbate, Sodium Benzoate, Benzyl Salicylate, Limonene, Hexyl Cinnamal
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