Monsieur BARBIER's natural alum stone is cut directly from the block, with no reconstitution! For maximum longevity and ultimate comfort. An alum stone is a block of natural mineral salt extracted from quarries all over the world. Used for centuries for its purifying, astringent, soothing and healing properties, it has become an essential accessory for Master Barbers. Before shaving, it smoothes the skin and straightens the hair. After shaving, it repairs the skin while preventing irritation and infection.

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