Alum blocks are crystallized blocks of potassium alum that can be used to help eliminate minor bleeding, inflammation, and razor bumps.
Alum Blocks For Wet Shaving (How To Use Them And Why) - Grown Man Shave
Is there anyway to fix this razor top?, Page 12
AnNafi® Alum Stone Block, White Alum Crystal Rock, Phitkari Crystal Stone of Alumbre, Natural Piedra de Alumbre Alum Stone, Shaving Stone Chunks
Honing Aluminum Blocks - Engine Builder Magazine
Alum Blocks For Wet Shaving (How To Use Them And Why) - Grown Man Shave
What is the difference between an Alum Block and Styptic Pencil?
Alum Blocks For Wet Shaving (How To Use Them And Why) - Grown Man Shave
How To Use Alum Block For Shaving And More
Alum crystal stone made in Thailand with 100% natural pure mineral salts of proven quality. Aluminum free, alcohol free, paraben free, organic, vegan
Vital Green Potassium Alum Crystal Block for Shaving – Alum Bar that Relieves Irritation Caused by Shaving and Hair Removal – Develops an Invigorating
Honing Aluminum Blocks - Engine Builder Magazine
Kent of Inglewood Potassium Alum Block from Kent of Inglewood
Post-shave routine: should you use an alum block? – Royal Shave
Alum Block: What It's For, Benefits, and How to Use It Correctly