Sabão de Marselha — 10 usos em casa (roupa, limpeza, manchas)

Marseille soap — the real soap, no mystification

"Marseille soap" is one of the most-abused designations on the detergent market. The traditional authentic version is made in a pot with just four ingredients — vegetable oil, soda, salt and water — following a procedure that goes back to the 17th century, codified by French royal edicts and still followed by the historic soap-makers of Marseille. Recognising real Marseille soap from what only carries its name is the first step to using it well: once you understand the difference, it's one of the most versatile natural products at home, particularly suited to those with sensitive skin or babies.

What it is (and what it isn't)

Real Marseille soap has a historical composition codified by the Colbert edict of 1688 under the Sun King and formalised today by the practices of the historic soap-makers: 72% vegetable oil (olive in tradition, today also coconut or palm in mixture), caustic soda (NaOH) for saponification, sea salt and water. Nothing else. No synthetic fragrances, no colourants, no preservatives, no animal oil (tallow), no petrochemicals. The typical shape is the 600 g cube (historic format) with the "72%" stamp branded into the faces, olive-green or white depending on the oil used.

The market is full of imitations: "scented Marseille soap" (with REACH-notified allergens), "Marseille-type soap" (which can have varied ingredients), and generic industrial soap labelled "Marseille" without respecting the historic composition. None of these are real Marseille soap. The name is not IGP/PDO, so legally anyone can use it — but the historic authentic product is the one described above.

Where to buy it in Lugano

Traditional drugstores and pharmacies sell 600 g cubes at CHF 12–25, and Migros and Coop offer some authentic brands (often Le Sérail) at CHF 15–30. Specialist bio shops (Allnatura, BioCorner) have the widest selection. Online — Galaxus, Brack, Manor — you'll find all the historic French brands (Le Sérail, Marius Fabre, La Corvette, Fer à Cheval).

What to look for on the label: "Extra pur 72%", the four-ingredient composition, the cubic shape with stamp, and origin Marseille or Provence with UPSM (Union des Professionnels du Savon de Marseille) recognition. Everything else is an approximation.

The ten home uses

Marseille soap is a Swiss army knife of natural cleaning, and it covers many functions that would otherwise need different products. For machine laundry it works as an alternative to detergent: 50–100 g of flakes plus a tablespoon of baking soda in the detergent drawer; for stubborn stains add also a tablespoon of percarbonate. For stain pre-treatment wet the stain, rub directly with the soap block, leave for 10–30 minutes and run a normal wash — effective on sweat, grease, fruit and fresh wine.

For hand-washing delicates (wool, silk, intimates) dissolve 50 g of flakes in 5 L of warm water and soak, with abundant rinsing. For floor cleaning, 1–2 tablespoons of flakes or liquid soap in 5 L of warm water are safe for hardwood (see the hardwood guide), tiles and marble — it's one of the few detergents marble tolerates without issue. For hand dishwashing, liquid Marseille soap is an alternative to industrial dish detergent: it degreases less aggressively but enough for daily use.

To these add more specific uses. The handwashing at the sink with a solid block is natural and economical (one block lasts 2–3 months for a family of four). Shirt-collar stain removal works by wetting, rubbing with the block, then a normal wash — effective on sweat and sebum. The homemade multi-purpose spray is made with 50 g of flakes in 500 ml of boiling water, a tablespoon of baking soda and a few drops of optional essential oil, poured into a spray bottle and stored 2–3 weeks. And there's sports-shoe washing (bath with liquid Marseille soap, warm water and soft brush for fabric shoes) and stuffed-toy and delicate-fabric washing (50 g per 10 L of warm water, thirty-minute soak, rinse, flat drying).

What NOT to clean

Storage and shelf life

The solid block lasts 2–3 months in daily use and should be stored in a dry, ventilated spot, never in standing water that dissolves it quickly. Flakes in an airtight jar last more than a year without losing effectiveness. Homemade liquid lasts 2–3 weeks in a spray bottle and separates over time: shake before each use.

Professional service

Comparison with industrial detergents

Summary

Authentic Marseille soap is an excellent product for daily use. It doesn't substitute specific products for specific problems (for limescale you need citric acid, for whitening percarbonate), but it covers 70% of a home's cleaning needs with a single natural, safe, traditional product. For families sensitive to allergens, it's one of the best choices on the market — always in the "sans parfum" version without added fragrances.