Cow Brand Mutenka Additive-Free Bar Soap 100g 3-Pack

Cow Brand Mutenka Additive-Free Bar Soap 100g × 3 Bars is Japan's most minimal cleansing bar for hypersensitive and additive-reactive skin — made from a single ingredient (pure kettle-boiled soap base from plant-derived oils) with no fragrance, colourant, preservative, mineral oil, or synthetic surfactants. Recommended by Japanese dermatologists as a safe cleanser for eczema, atopic, and surgically sensitive skin.

• Soap Base (石ケン素地) — the only ingredient; saponified plant-derived oils, kettle-boiled to remove impurities
• No fragrance, colourants, preservatives, mineral oil, or synthetic additives
• Natural glycerin-containing lather — kettle-boiling retains glycerin for added moisturising
• 100g × 3 bars — multi-pack for uninterrupted availability

Why zero-additive matters for atopic and eczema-prone skin: Standard bar soaps use synthetic surfactants and additives (fragrance, preservatives) that are common sensitisers for atopic skin. Mutenka's single-ingredient formulation eliminates the ingredient investigation required with multi-component products — if a reaction occurs, there is only one possible cause, and it is generally very unlikely given the clean formulation.

Mutenka vs Akabako vs standard bar soaps: Mutenka for skin where any additive triggers reactions. Akabako for skin wanting mild moisturising alongside cleansing without strong additive sensitivity. Standard bar soaps for skin tolerating fragrance and preservatives with no sensitivity concerns.

Known in Japan as カウブランド 無添加せっけん ３コパック.

The three-bar multi-pack ensures an uninterrupted supply. For atopic and eczema-prone skin where changing soap brands mid-course can trigger reactions during the transition period, keeping a 3-bar supply on hand prevents the need to use alternative products when the current bar runs out, maintaining skin stability throughout.