Proraso Allum Shave Stone Salt Block 100g - Ref 400801

If your skin is prone to redness and irritation, post shave care is an essential part of any shave routine. 100% natural Potassium Alum After Shave Stone is an ideal post-shave combination to soothe the skin, reduce redness, tone, and disinfect.

What is potassium alum?

Potassium alum is a natural sulfate mineral which typically appears as encrustations on rocks in areas of weathering, and where the oxidation of sulfide minerals and potassium-bearing minerals occur. Natural potassium alum is commonly used in organic deodorants and aftershave treatments.

How does potassium alum work post shave?
Potassium alum acts as an astringent with styptic qualities to reduce the bleeding from small shaving cuts or nicks, it coagulates the blood and seals small blood vessels. An astringent used after cleansing temporarily tightens the skin, shrinks the pores and removes oil. It is also useful as an antiseptic.

How To Use:

The Proraso After Shave Stone is best used after shaving. Simply rinse your face with cold water and run the stone on your face. Let it work for a few seconds, then rinse with lukewarm water. This process cools, soothes, tones, and tightens the skin, whilst reducing redness and irritation.

Potassium alum VS Synthetic aluminium

Potassium alum is a naturally occurring mineral salt that contains aluminum. Aluminum itself is a naturally occurring element found in the earth's crust.

However, some forms of aluminum can also be produced synthetically. Some forms of synthetic aluminum, such as aluminum chlorohydrate and aluminum zirconium, are commonly used in antiperspirant deodorants.

Natural potassium alum is not absorbed by the skin, while the synthetic aluminum compounds in antiperspirants are absorbed and clog sweat ducts to reduce sweat production.

Natural potassium alum is considered to be safe for use on the skin, while concerns have been raised about the potential health risks associated with the use of synthetic aluminum-based antiperspirants, including the potential link to breast cancer and Alzheimer's disease.

Proraso's After Shave Stone is produced from 100% natural potassium alum.