An ultimate ingenious life-hack product and the best kept secret the big beauty brands don’t want you to discover: natural alum stone.

Naturally occurring potassium salt mineral has strong antibacterial properties, so it can be used as a deodorant, or to prevent irritation after shaving or waxing, works on spots too!

As a deodorant it’s totally odorless, and leaves your clothes unmarked.

The bloc needs to be slightly wet with water before each use.

This 100 g bloc will last for several years.