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This review is from: Osma Bloc - Alum Block 75g (Soothes Shaving Irritation) (Personal Care)
This is a must have for any of you fellow "double edge" shavers out there. This is a potassium alum block which is a hard white mineral. I tend to wet the end of it of I nick myself and hold it onto the problem area. Hey presto - the bleeding stops. You don't use much and so it will last for a very long time. A nice old school product that is a great addition to your shaving kit.