Glossary
Hygroscopic
A material that picks up water from the air or from skin. Magnesium carbonate is used that way.
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Hygroscopic means the substance attracts moisture. Chalk on your hands is there to take sweat off the surface so skin can meet the bar or the hold. It does not make you stronger, and it does not stop you from sweating. It only changes what is on the surface.
The same property is why a chalk bag left open in a damp room gets clumpy, and why a liquid bottle left open loses solvent and turns to paste. Close the cap.
Black Diamond White Gold loose chalk
Loose chalk. The title says 100% magnesium carbonate, in a loose or refillable format.
This is powder. Gyms that ban dry chalk are talking about this category. It is the comparison piece next to a liquid bottle, not a liquid itself.
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