Which surfaces can this black soap with linseed oil be safely used on?

It is suitable for hard, non-porous surfaces such as tile, stone, metal, sealed wood and concrete for degreasing, but should be avoided on delicate fabrics, unsealed wood, or painted finishes that may react to its alkaline nature.

Does the product contain any ingredients that could cause irritation or pose safety risks?

The formula includes alkaline agents sodium citrate and potassium carbonate, as well as the chelating agent Tetrasodium Glutamate Diacetate, which may irritate eyes or sensitive skin; users should wear gloves, avoid eye contact, and keep the product out of reach of children.

Is the packaging recyclable and are the ingredients biodegradable?

Packaging details are not provided, so recyclability cannot be confirmed, but the inclusion of natural linseed oil and the Ecocert certification indicate that the ingredients are biodegradable and the product aims for a lower environmental impact.

Auchan, Better life • 0.75 l

Savon noir a l'huile de lin

Product

Product Insights

Savon noir a l'huile de lin is a 0.75 L black cleaning soap enriched with linseed oil and certified by Ecocert, marketed for household degreasing. Its formulation combines natural linseed oil with synthetic additives such as sodium citrate (E331), potassium carbonate (E501), glycerin (E422) and Tetrasodium Glutamate Diacetate, resulting in a NOVA 4 (ultra-processed) classification. While the eco-certification and botanical oil support a greener cleaning claim, the presence of alkaline agents and the lack of clear packaging recyclability raise safety and sustainability considerations.

Comparative Analysis

Positioned as an eco-certified black cleaning soap enhanced with linseed oil, it targets consumers seeking natural degreasing solutions for floors and surfaces, differentiating itself from conventional synthetic detergents through its botanical oil content and Ecocert label.

Ingredients

5 % ou plus, mais moins de 15 % : savon. Moins de 5 % : citrate de sodium, carbonate de potassium, glycérine, Tetrasodium Glutamate Diacetate. Contient également : Eau, huile de lin

84%

35%

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Frequently Asked Questions

Everything you need to know about Savon noir a l'huile de lin.

Savon noir a l'huile de lin parfum citron

Auchan, Better life

1 l