Updated January 2022
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BestReviews spends thousands of hours researching, analyzing, and testing products to recommend the best picks for most consumers. We only make money if you purchase a product through our links, and all opinions about the products are our own. Read more  
BestReviews spends thousands of hours researching, analyzing, and testing products to recommend the best picks for most consumers. We buy all products with our own funds, and we never accept free products from manufacturers.Read more 
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We recommend these products based on an intensive research process that's designed to cut through the noise and find the top products in this space. Guided by experts, we spend hours looking into the factors that matter, to bring you these selections.

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An alum block is a natural healing product that’s primarily used as aftershave. Men use this block to calm sensitive skin post-shave and also heal minor nicks and cuts. These blocks are made of potassium alum and have natural antiseptic qualities. Part of a multi-step grooming routine that should be used before applying aftershave and/or face balm. Alum blocks have been used for thousands of years to calm irritated skin in a natural way. Ancillary benefits include using the block as a deodorant. Have other medical products on hand in the event you have an atypical shaving cut. Preventive qualities also help to reduce future shaving accidents.

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