C2C Certified Material Health Certificate™ Platinum

Zeology by Smit Tanning B.V. (Nera)


The product Zeology developed and produced by Nera is a main tanning material, with which hides are converted to leather. It is in the form of a powder that will be dissolved in water and applied in big closed drums together with hides at professional leather tanneries. The zeolite tanning agents are an alternative to chrome based tanning agents often used in leather tanning and known for their human and environmental health impact.

This certificate covers the following products:

This product was assessed exclusively for use by professional tanneries trained in the proper handling and use of protective equipment for products which cause skin and eye irritation. The requirements for certification have only been met under these conditions.

PLEASE NOTE: The description of the product is provided solely by the product’s manufacturer. C2CPII cannot and does not independently verify the accuracy of the product description in this registry, and only attests to the validity and level of certification awarded to each product under the Cradle to Cradle Certified Product Standard. Please contact the product’s manufacturer with any questions about the product’s description or purchasing details.