Zeology, the sustainable tanning agent

Discover Zeology & Zeology Leather

Zeology is a revolutionary tanning agent, that is free of chrome, heavy metals and aldehyde. Zeology enables you to create compostable, biodegradable and circular leather. 

  • The best sustainable alternative to traditional tanning solutions.
  • Outstanding leather performance.
  • Responsible & eco-friendly choice.

Download the Zeology leaflet

Compostable & biodegradable

Imagine a beautiful bag from responsibly sourced leather, that is manufactured in a way that it could compost, biodegrade and return to nature. That is what Zeology Leather is all about.

Your used Zeology Leather bag or shoes can provide the soil with nutrients once the material has disintegrated into compost. Zeology Leather gives a proper compost within 45 days under industrial composting. It is also found to actually nourish the soil, delivering stronger plant growth than industrial compost.

More on biodegradability

Puma Zeology

Zeology X Puma

The RE:SUEDE is made with materials such as Zeology tanned suede, biodegradable TPE and hemp fibers. Compared to other biodegradable materials that were evaluated by PUMA, these materials also ensure better comfort for the wearer. – Puma


Zeology tanned leather is a circular material, because it is manufactured in a sustainable way without hazardous chemicals. The Zeology tanning solution consists of certified circular chemistry. It comes from earth, to cow, to bag, to earth and on again. A model of perfect circularity.

It is essential to change the way products are designed and manufactured, for a cleaner planet, safer working conditions and use of products. Our certifications help us to achieve these goals.

What is zeolite?

Zeology is a patented modified zeolite chemistry. But, what is zeolite? Zeolite is a raw material, built from three elements that are abundantly available (80% of earth’s crust), consisting of a non-toxic aluminium compound. It is a completely safe ingredient, also used in toothpaste, detergents and other cosmetic products.

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Return to Nature Anya Hindmarch

Zeology X Anya Hindmarch

With Zeology tanned leather we have crafted the Return To Nature tote and bucket bag styles. The bags can biodegrade naturally back to earth. The material breaks down nearly as quickly as untanned skin. – Anya Hindmarch

Zeo White

Zeo White is the Zeology-tanned leather intermediate. When you convert a pelt into Zeo White, using Zeology, it is unsurpassed in characteristics such as grain tightness, physical leather properties, lightfastness and heat-resistance. In addition, its bright white color, enables white leather, and lighter and brighter colors than were ever possible before.

What are the benefits?

Zeology is the best sustainable alternative to traditional tanning solutions. It is chrome free, heavy metal free, aldehyde free and easy to implement. Yet, it offers unrivalled leather performance! It offers the best of both worlds: the environmental benefits of a sustainable alternative to chrome and glutardialdehyde (GDA) tanning plus a reliable, consistent, superior quality of the tanned material.

An overview of the benefits

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Zeology Leather Suppliers
Download: Zeology Information Kit

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University of Zeology

Learn everything about the science and chemistry behind Zeology

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