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A premium blend of our new scientifically engineered chalk, Black Gold contains 10% Upsalite—a super porous form of magnesium carbonate that absorbs 30% more moisture than other compounds.


  • Pure Upsalite compound absorbs 30% more moisture than other compounds
  • Scientifically engineered to enhance your grip by keeping your hands super dry
  • Comes as loose chalk in 200-gram or 30-gram packets

Upsalite is an inorganic salt that is used in the blend of BD chalk. Upsalite, has an incredibly high surface area and is extremely porous, which means the material can absorb extra liquids - hence more sweat! This helps us climbers keep our hands super dry for longer, and you will end up using less chalk!