We’ve expanded our Mg2+ line!

Same ocean filtered seawater chalk, now in block form!  

The Mg2+ Chalk Blocks are pure, gentle, and built to perform. Perfect for climbers, lifters, gymnasts, and anyone serious about their grip.

Why you will love our blocks: 

Pure & Skin Friendly:

Crafted from high-purity magnesium carbonate filtered from seawater, this formula contains no additives, is gentle on the skin, and provides maximum grip and long-lasting dryness in any condition.

Convenient & Customizable:

Our 2oz / 57g chalk blocks are easy to store and fit perfectly in your gym bag or locker. Whether you prefer to keep them intact for stability or break them down into smaller pieces for finer control. the choice is yours – tailor your chalk setup to your personal preferences.

Long-Lasting Application:

Each Mg2+ chalk blocks lasts longer thanks to its dense, low-dust formula that sticks better and requires fewer reapplications during intense sessions.

Trusted by Athletes:

Whether on the wall, bar, or beam, pros and enthusiasts alike choose our Mg2+ chalk for its unmatched reliability.

Want regular loose chalk? Check out our Mg2+ Chalk Tube!