Pioneering biomaterials company MycoWorks today shares the latest performance data for their premium flagship mycelium material, Reishi™ - the first Fine Mycelium™ material to enter the luxury materials market. The 25th of February also marked the first time customers can purchase MycoWorks' high-performance mycelium-made materials directly with the launch of the company's first ever e-commerce site.
MycoWorks' Rei-Tanning™ Technology
Through a collaborative effort between MycoWorks' San Francisco-based Innovation Center and MycoWorks' Spain tannery experts in Igualada, a region well known for its traditional leather tanning expertise, the company has rolled out Rei-Tanning™ technology. The exclusive formula enhances the performance consistency of Reishi™ sheets, enabling the production of luxury goods with intricate construction techniques, including "stitch-and-turn" and edge applications.
During this unique nourishing process, Reishi™ sheets are treated to achieve desired properties such as fullness and softness, durability, and resistance to water and other elements. The Rei-Tanning™ process is the ultimate combination of innovation and traditional know-how. As Reishi™ is today available at scale, specific retanning guidelines are available under license for use by clients' facilities. The Rei-Tanning™ process is unlocking new applications within the luxury sector, overcoming challenges that have long made such achievements difficult for biomaterials.

Image courtesy: MycoWorks
Latest Reishi™ Performance Results
Latest test results show that Reishi™ is performing higher on a range of luxury leather benchmarks, setting a new bar for both the biomaterials industry and leather alternatives. Tested on harvests of Reishi™ grown at the company's commercial-scale plant in South Carolina (the world's first ever of its kind), these results validate the innovative biomaterial's ability to measure up to– and even surpass– key quality indicators, and likewise show MycoWorks' continued commitment to deliver mycelium materials of the highest caliber to market. Combined, these tests showcase the superior durability, resistance and performance of MycoWorks' Fine Mycelium™ materials.
Validated through third-party testing*, Reishi™—with Rei-Tanning™ applied—has achieved new standards in five key qualitative evaluation areas, exceeding most indicators:
Bally Flex resistance (flexibility, creasing): till 20,000 cycles
Martindale Abrasion Resistance: till 25,600 cycles
Colorfastness (dye transfer): Reishi has passed the 200 cycles for dry rub test (Veslic)
Ageing Test at 50°C and 90 % R.H. : Pass
Finish Adhesion: Reishi has reached 0.5N/mm
Tests conducted by CTC Groupe 14/02/2025*Results achieved with the Reishi Aura finishing, other Reishi finishing results available on demand.
Ligne Roset validates Reishi™'s performance
MycoWorks' strategic partner, Ligne Roset, has also conducted proprietary tests on Reishi™ in its internal lab, using rigorous standards that exceed typical furniture industry benchmarks. These tests included the successful completion of the Martindale Abrasion Resistance test (up to 50,000 cycles) and a sitting simulation test (replicating a 100 kg human body for over 25,000 cycles).
These overall performances are the result of ten years of research and commitment at MycoWorks to meet their strategic partners' most demanding criteria and anticipate customers' needs.
Scalable, high-performing, and now surpassing standards for both innovative and legacy materials, Reishi™, is being used across a diverse range of industries including leather goods, accessories, furniture, and interior design. Supple and durable, Reishi™ lends itself well to the craft and assembly of beautiful, sophisticated objects.
MycoWorks launches Reishi™ e-commerce platform
MycoWorks unveiled on the 25th February the first e-commerce platform for their mycelium biomaterials, marking a new milestone for the pioneering company: immediate online purchases. The online site will have multiple options for samples including:
'The Reishi™ Sample Kit' with swatches of material
Single Reishi™ sheet purchases (of which up to 5 can be ordered per SKU)
Larger orders ranging from 15 to 50 sheets of Reishi™ per SKU
