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Frequently Asked Questions

Technical specifications, application protocols, shipping policies, and wholesale terms.

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Most commercial gym chalk blocks are cut with up to 40% limestone powder, talc, or cheap clay binders to reduce production cost. When athletes sweat, these binders turn into a slippery grease on the barbell. Callus Rage is 100% pure lab-grade magnesium carbonate with zero fillers, guaranteeing maximal friction, bone-dry knurling lock, and zero palm slippage under 300+ kg loads.

Have a Specific Question?

Our technical support team is active on WhatsApp to answer athlete questions regarding formulas, dosage, or order tracking.