Secret Stuff is FrictionLabs answer to liquid chalk. Rub a small amount on your hands, let dry, and a perfect layer of the highest purity Magnesium Carbonate magically appears.

Hygienic 80% Alcohol Liquid Chalk:

Introducing the world's first Hygienic Chalk. Contains the concentration of ethanol (80%) recommended by the WHO, CDC, and FDA for Alcohol-Based Hand Sanitizer Products During the Public Health Emergency.