Is Cosmia Extra Gentle Shampoo suitable for sensitive or dry scalps?

The formula combines mild surfactants such as decyl glucoside and coco-glucoside with glycerin and a trace of shea butter, which can be soothing for normal to slightly dry hair, but the presence of Sodium Laureth Sulfate, fragrance and synthetic colorants may still trigger irritation in very sensitive scalps.

What does decyl glucoside do in this shampoo?

Decyl glucoside is a non-ionic, plant-derived surfactant that provides gentle cleansing power without stripping the hair of its natural oils, helping to maintain moisture balance especially in a product marketed as 'extra gentle'.

How often should I use this shampoo and are there any controversial ingredients to watch out for?

It can be used daily or every other day as part of a regular hair-care routine; however, consumers should be aware that it contains Sodium Laureth Sulfate, several PEG compounds, synthetic dyes (CI 19140, CI 15985) and preservatives such as Sodium Benzoate and Potassium Sorbate, which some people consider potential irritants or avoid for personal health or environmental reasons.

Cosmia • 0.25 l

Shampoing extra doux

Beauty

Product Insights

The Cosmia Extra Gentle Shampoo is a 250 ml liquid formulation designed for daily use, featuring a base of water, mild surfactants (decyl glucoside, coco-glucoside) and humectants such as glycerin that help cleanse while retaining moisture. It also contains a blend of botanical ingredients like Gardenia taitensis flower extract and a tiny amount of shea butter, providing a light conditioning effect and a subtle fragrance. However, the formula includes Sodium Laureth Sulfate, multiple PEG derivatives, synthetic colorants (CI 19140, CI 15985) and preservatives (Sodium Benzoate, Potassium Sorbate), which may cause irritation or be unsuitable for very sensitive scalps.

Comparative Analysis

Positioned as an ultra-gentle, salon-style shampoo for everyday use, this Cosmia offering differentiates itself with a mix of mild surfactants and botanical extract while remaining in the mass-market segment due to its affordable price point and widespread availability at retailers like Auchan.

Ingredients

Aqua, Sodium Laureth Sulfate, Sodium Chloride, Cocamidopropyl Betaine, PEG-7 Glyceryl Cocoate, Parfum, Glycerin, Decyl Glucoside, Glycol Distearate, Citric Acid, Sodium Benzoate, Polyquaternium-7, Guar Hydroxypropyltrimonium Chloride, Potassium Sorbate, PEG-12 Dimethicone + Laureth-4, Styrene/Acrylates Copolymer, Coco-glucoside, Lactic Acid, Propylene Glycol, Benzoic Acid, PEG-40 Hydrogenated Castor Oil, Trideceth-9, Gardenia taitensis flower extract, Butyrospermum Parkii Butter, CI 19140, CI 15985.

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