Based on its formula, is this shampoo safe for sensitive, acne-prone, or dry scalp/hair?

The shampoo combines mild surfactants (Decyl Glucoside, Cocamidopropyl Betaine) and moisturizers (glycerin, shea butter) that are generally well-tolerated, making it suitable for normal to dry hair; however, the presence of Sodium Laureth Sulfate, fragrance and synthetic dyes can irritate very sensitive or acne-prone scalps, so a patch test is recommended for those individuals.

What is the specific role and benefit of shea butter (Butyrospermum Parkii Butter) in this shampoo?

Shea butter acts as an emollient and deep-conditioning agent, coating the hair shaft to lock in moisture, improve softness, and reduce frizz, while also providing a protective barrier against harsh surfactants.

What is the optimal application frequency for this shampoo, and does it contain controversial chemicals?

For most hair types the product can be used daily or every other day; it contains potentially controversial ingredients such as Sodium Laureth Sulfate, several PEG-based polymers and synthetic colorants, which some consumers avoid due to irritation or environmental concerns.

Cosmia • 0.4 l

Shampoing extra doux

Beauty

Product Insights

Cosmia Extra Gentle Shampoo, sold in a 0.4 L bottle at Auchan, uses a combination of mild surfactants such as Decyl Glucoside, Cocamidopropyl Betaine, and a moderate amount of Sodium Laureth Sulfate, together with conditioning agents like glycerin and shea butter to provide a clean and soft feel. The formula also includes fragrance, synthetic preservatives (sodium benzoate, potassium sorbate), several PEG-based polymers, and colorants (CI 19140, CI 15985), which may cause irritation or sensitisation for sensitive scalps. Overall, it balances effective cleansing with moisturisation, but consumers seeking fully natural or fragrance-free options should weigh the presence of these harsher ingredients.

Comparative Analysis

Positioned as an affordable, extra-gentle supermarket shampoo, this Cosmia formula targets everyday cleansing with a blend of mild surfactants, glycerin and shea butter, differentiating itself from harsher salon-grade cleansers while still containing synthetic polymers and colorants common in mass-market hair care.

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.

84%

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