A traditional manufacturing certification
Le Serail has received a distinctive mark awarded by the Marseille Chamber of Commerce and Industry, certifying its authentic artisanal expertise. This distinction testifies to its respect for the traditional methods of master soap makers, with saponification in a cauldron.
Le Serail is among the last soap factories to perpetuate this ancestral process for the manufacture of genuine Marseille soap, a method recognized for producing a mild, durable and naturally effective soap.
A soap factory committed to tradition
From its inception, Le Serail has championed artisanal expertise inspired by Marseilles traditions. The soap factory prioritizes manufacturing methods that respect historical practices in order to preserve the authenticity of true Marseilles soap.
Through its products, Le Serail values simplicity, the quality of ingredients, and the transmission of a traditional craft. This commitment to preserving artisanal production methods helps keep alive an iconic part of Marseilles’ heritage to this day.
body care
To cover your body with naturalness
Home & Living
Kōsm helps you take care of your daily life with natural products that honor every corner of your universe
Our Soaps
Kōsm invites you on a sensory journey through exceptional soaps
Our favorites
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Authentic Marseille Soap Bar – Olive Oil – 100 g
Authentic Marseille soaps with olive oil
Made by Savonnerie Le Sérail in France.
100g -
Authentic Marseille Soap in Bulk – Coconut Oil
Authentic cube of Marseille soap with coconut oil, certified by the Union of Marseille Soap Professionals (UPSM).
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Authentic Marseille Soap in Bulk – Olive Oil
Authentic Marseille soap from the Le Sérail soap factory with olive oil
Bulk 1.5 kg, economical size! -
Authentic Marseille soap slice on rope
Glycerin-free household soap slice on a rope, easy to hold. For infrequent use, it represents a good compromise between its…
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Authentic Marseille Soaps 100g Pack of 4 – 2 Olive and 2 Neutral
Authentic Marseille soaps for the bathroom, composed of 2 olive oil-based bars and 2 vegetable oil-based bars.Handcrafted by the Le…
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Liquid soap – Leather care – 500 ml
Marseille liquid soap for leather care. It cleans, nourishes, and protects all types of leather without damaging it.Leaves a pleasant,…
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Marseille Soap Bar with Shea Butter 125g
Marseille soap enriched with shea butter and exfoliating particles to gently cleanse and soften the skin.For hands after gardening, renovations,…
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Marseille soap stain remover bar enriched with bicarbonate 80g
Marseille soap stain remover bar enriched with bicarbonate of sodaIdeal for removing stains from laundry while respecting the fibersMade in…
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Refined Marseille Soap Cube – Olive Oil
Refined Marseille soap, cooked in a cauldron and enriched with olive oil, for soft skin and natural daily cleansing.Two sizes…
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Round Marseille Soap 150 g – No Coloring
Natural Marseille soap round – colorant-free – for body care, 150 gMade the traditional way in the cauldrons of Savonnerie…
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Traditional Black Soap with Olive Oil and Linseed Oil – Lavandin E.O.
Traditional black soap made with olive and linseed oil, scented with lavender essential oil.Made in the purest Marseille tradition by…
Our promise
You deserve the best, and we are committed to providing you with quality products that preserve the balance of nature.
Natural ingredients
Ethical products
Environment
Respect for procedures
Authentic care
Simplified service
