New: KletterRetter Performance Chalk with 10% Upsalite

We all know that moment: your hands are sweating, your pulse is racing, the crux is approaching – and suddenly your grip fades. You don’t feel ready for the next move. That’s exactly why we developed our new KletterRetter Performance Chalk.

The combination of ultra-pure magnesium carbonate and 10% Upsalite®, a patented, highly porous magnesium carbonate from Sweden, takes your friction to the next level. More control, less re-chalking and better performance, whether you’re bouldering, climbing outdoors, or competing.

What makes our Performance Chalk so special?

Upsalite® is not an ordinary magnesium carbonate. It has an extremely large internal surface area and a mesoporous structure that efficiently binds moisture and oil. Even with only 10% Upsalite®, moisture absorption doubles compared to regular chalk.

This means for you:

• More grip, even during long sessions
• Longer-lasting dry hands
• Reduced chalk consumption (more efficient use)
• Consistent grip, even in changing conditions

Upsalite® can bind not only water but also skin oils and fats, a crucial advantage when your grip starts to fade.

The science behind Upsalite®

Upsalite® was developed at Uppsala University and has a structure with so much surface area that one gram can cover several hundred square meters, equivalent to the area of several tennis courts. The pores are so fine that they absorb moisture extremely efficiently and can store it over time.

Studies and application data show:

• 2× higher moisture absorption with only 10% Upsalite® in the chalk
• Improved adhesion, as Upsalite® embeds into the skin structure and increases the contact area
• Dermatologically tested, vegan, skin-safe, and approved for cosmetic use

Who is the Performance Chalk ideal for?

Perfect for anyone looking to get the most out of their grip:

• Performance climbers & competition athletes who require absolute precision
• Boulderers who need maximum friction
• Outdoor climbers training in changing conditions
• Anyone wanting to feel a measurable performance difference

How does it feel?

Most testers report:

• Immediately dry but not over-dried hands
• Noticeably improved friction on volumes and crimps
• Stable performance over extended periods
• Less re-chalking and fewer “chalk clouds”

This matches our internal data: chalk with Upsalite® stays effective longer and needs to be reapplied less frequently.

Why only 10% Upsalite®?

In theory, a higher percentage would be possible, but:

• Pure Upsalite® would be too dehydrating
• It would be unnecessarily expensive
• It would dry out the skin too much over time

Our blend of 90% magnesium carbonate + 10% Upsalite® is the optimal sweet spot between performance and skin-friendliness.

Sustainable packaging

Our packaging consists of:

• 100% recyclable mono-material
• 30% recycled materials

This way we combine performance with sustainability – true to the KletterRetter spirit.

Ingredients

Magnesium carbonate, Upsalite®

Conclusion: More control in every move

Whether on crimps, slopers, or volumes, KletterRetter Performance Chalk supports you in every movement. More friction, less re-chalking, higher efficiency, and a noticeable performance boost thanks to 10% Upsalite®.

If you want to take your climbing to the next level, this is the perfect addition to your chalk bag.