Resin, rosin, pof. Whatever you call it, it's widely accepted that we should NOT use it while climbing. It's said to ruin holds - both indoors and out. Now it might be in your chalk. Block, liquid, and powder.
This is a public service announcement.
Learn more about the science of climbing on Breaking Beta.
Read more about pof and rosin usage:
Why Climbers Started Using Chalk
Removing Rosin from Liquid Chalk
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