Laboratoires Osma (France)

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Laboratoires Osma (France)

About Laboratoires Osma (France)

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Laboratoires Osma

💡 The Natural Astringent:

Since 1957, Laboratoires Osma has been the last remaining manufacturer of natural potassium alum blocks in France. A staple of traditional wet shaving, Osma provides the ultimate zero-waste, natural solution for soothing razor burn and stopping minor nicks instantly.

Pure Potassium Alum

Unlike commercial styptic products laden with synthetic chemicals and alcohol, Osma blocks are carved from 100% natural, crystallized potassium alum. Simply run the block under cold water and glide it over the shaved area to instantly tone the skin, close the pores, and neutralize bacteria.

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The Tradition Block

The iconic Osma Alum Block is a "Buy-It-For-Life" essential. A single block can last for years, replacing countless bottles of synthetic aftershave.

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Styptic Pencils

Precision natural alum pencils designed to immediately halt bleeding from minor nicks and cuts during a safety razor or straight razor shave.

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Handcrafted in France

Subjected to strict French cosmetic regulations, ensuring a purely natural, hypoallergenic product that is safe for the most sensitive skin.

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