Rock Technologies MagZero Chalk - Ultra Dry Low Hydrate Pucks (150g)

Rock Technologies MagZero Chalk is an ultra dry, low hydrate climbing chalk made for sweaty hands and long sessions. A refined low hydrate formula absorbs more moisture than standard chalk, so your hands stay dry for longer and you spend less time reaching for the bag.

It comes as loose pucks in a 150g resealable tub, roughly 10 pucks, and it's nothing but 100% pharmaceutical-grade magnesium carbonate: no artificial drying agents, so you get a clean, natural feel on skin with less irritation and no impurities getting between you and the hold. It's mixed and packed in the UK, and the packaging is 100% recyclable and sourced from sustainably managed forests.

Choose MagZero over a standard chalk when humidity or sweat is what's stopping you sticking the moves. Sport routes, hard boulders and warm indoor walls are where it earns its place.

Why you'll love it

• Ultra dry – low hydrate magnesium carbonate absorbs more sweat than standard chalk
• Longer-lasting grip – stays on your hands longer, so you reapply less and climb more
• No drying additives – pure chalk with a natural skin feel and reduced irritation
• Pharmaceutical-grade purity – consistent friction with no impurities affecting grip
• Made in the UK – mixed and packed locally for consistent quality

Good to know

• Chalk type: loose chalk pucks
• Weight: 150g (approx. 10 pucks)
• Material: 100% pharmaceutical-grade magnesium carbonate, no drying agents
• Packaging: resealable tub, 100% recyclable, sourced from sustainably managed forests

Who it's for

Climbers with sweaty hands and anyone training regularly, whether that's bouldering, sport climbing or indoor sessions in humid conditions. It suits every level from beginner to advanced.