A weekly keratin mask that repairs and softens tired hair
Coslys Nourishing Mask is a hair mask enriched with plant-derived keratin and ceramides, made to nourish and repair the hair fibre. Used once a week, it smooths the surface of each strand, reinforces the hair’s resistance and leaves it easier to detangle and style. Its formula is built on a base of shea butter and plant oils that melt into the hair without weighing it down.
The texture
A rich, creamy mask that spreads easily through damp hair and rinses out cleanly, leaving hair soft and smooth, not greasy.
Who it suits
- Dry, dull or damaged hair
- Hair that tangles or breaks easily
- Anyone who wants a weekly deep-conditioning step
- All hair types
Worth knowing before you buy: This mask contains fragrance. If your scalp is reactive, keep it on the lengths and ends rather than massaging it into the scalp.
How long one jar lasts
Used once a week on mid-lengths and ends, the 250ml jar lasts around four to five months.
Complete the routine

Sensitive Scalp Shampoo with Oat
A gentle oat shampoo for sensitive scalps.
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Keratine Sublime Conditioner
A keratin conditioner for fragile hair.
Shop →Characteristics
- Texture: cream mask
- Hair type: dry, dull or damaged hair, all hair types
- Concerns: dryness, dullness, tangling, weak hair fibre
- When to apply: once a week, after shampooing
- Main benefits: nourishes, repairs the hair fibre, smooths, eases detangling
How to use
After shampooing, apply generously to damp hair, focusing on mid-lengths and ends. Leave for 5 to 10 minutes, then rinse thoroughly. Use once a week.
Active ingredients
- Plant-derived keratin: helps repair and reinforce the surface of the hair fibre
- Ceramides: help smooth the hair surface and ease detangling
- Shea butter: nourishes and softens the hair
Ingredients
Aqua (Water) · Brassica Alcohol · Spiraea Ulmaria Flower Water · Cetyl Alcohol · Caprylic/Capric Triglyceride · Glycerin · Brassicyl Isoleucinate Esylate · Butyrospermum Parkii (Shea) Butter · Linoleic Acid · Hydrolyzed Corn Protein · Hydrolyzed Wheat Protein · Hydrolyzed Soy Protein · Arginine · Behenyl/Stearyl Aminopropanediol Esters · Trametes Versicolor Extract · Aloe Barbadensis Leaf Juice Powder · Lilium Candidum Flower Extract · Sclerotium Gum · Parfum (Fragrance) · Benzyl Alcohol · Dehydroacetic Acid · Tocopherol · Glycine Soja (Soybean) Oil · Leuconostoc/Radish Root Ferment Filtrate · Linolenic Acid · Sodium Benzoate · Potassium Sorbate · Limonene · Linalool · Geraniol
Formulations are updated by the manufacturer from time to time. Always check the packaging you receive.
Manufacturer information
Brand: Comptoir des Lys (Coslys)
Address: 4 rue de Blois, 49300 Cholet, France
EAN: 3538396187304
