An independent side-by-side ethics comparison of Karst and Cuyana across certifications, average sustainability score and product range.
93.3/100 avg ethics
3 products tracked
Certifications
87.3/100 avg ethics
3 products tracked
Certifications

Revolutionary 'stone paper' notebooks made without water, trees, or bleach, providing a waterproof and tear-resistant writing surface.

A revolutionary tree-free notebook made from repurposed calcium carbonate (stone) instead of wood pulp, using significantly less water and energy in production.

A revolutionary waterproof notebook made entirely from recycled stone waste instead of trees, utilizing zero water or bleach during production.

A sophisticated, women-owned brand travel backpack made from 100% recycled plastics and sustainable Italian leather accents.

A sophisticated, LWG-certified Italian leather tote designed with a 'fewer-better' philosophy.

An ultra-soft, responsibly sourced alpaca wool scarf produced by heritage artisans in Peru, promoting the 'fewer, better' philosophy of sustainable fashion.
Karst scores higher on independent ethics scoring: Karst averages 93.3/100 vs Cuyana at 87.3/100.
Karst appears with 4 verified certifications (B Corp, Cradle to Cradle, Climate Neutral, 1% for the Planet). Cuyana appears with 7 (Global Recycled Standard, OEKO-TEX, LWG Gold Certified, 1% for the Planet, B Corp).
Yes. Both brands are scored by the same methodology — never paid placement. See our methodology page for the weighting.