Shudh Online Alum stone or Fitakri has been used for a variety of health benefits for ages. Mainly potash alum is used to purify water as an aftershave strengthen teeth glow the skin and as a . It is also known in Hindi as Fitkari Blocks or Fitkari Crystal. It soothes shaving irritation from shaving razor and act as a natural aniseptic in barber hair salon. Other names - Shubhra sphatika Patika Padikaram Turti Potash alum Potassium alum Potassium aluminium sulphate Shudh Online products are selectively sourced with great emphasis on purity and authenticity and are 100% natural ayurvedic products. We don't add any or additives in the product and using our product will get you closure to nature.