Scientists are growing T. rex leather in a lab. It could be used to make purses.

Indianapolis Star

10-05-2025

The next time you go shopping for a new purse, your choices could go beyond traditional materials such as leather, nylon, cotton and polyester to include … Tyrannosaurus rex skin?
Yes, the remnants of the prehistoric predator are being used to create synthetic T. rex leather, which can be turned into accessories including purses. That's the plan for a trio of companies – The Organoid Company, Lab-Grown Leather Ltd., and VML – working on "a high-quality alternative to traditional leather that's cruelty-free and eco-friendly," said the collaborators in an April 25 news release.
The goal of a "luxury fashion item," hitting later this year, would be the first example of leather developed from an extinct species, the companies said.
"With T-Rex leather we're harnessing the biology of the past to create the luxury materials of the future," said Bas Korsten, global chief creative officer, Innovation & CCO EMEA at VML, the agency behind the 2024 Super Bowl "Mayo Cat" campaign and 2023's Mammoth Meatball, made of lab-grown meat.
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The team at The Organoid Company, a Netherlands-based biotech, will use fragments of T-Rex collagen protein recovered from fossils to recreate the prehistoric protein and engineer the new DNA into specialized cells for leather production. Another biotech company, the U.K.-based Lab-Grown Leather Ltd., will then use those specialized cells to produce skin, made with the T-Rex collagen protein, which is then tanned to form T-Rex leather.
"This project is a remarkable example of how we can harness cutting-edge genome and protein engineering to create entirely new materials," said The Organoid Company CEO Thomas Mitchell.
T. Rex leather could serve as a more environmentally friendly option to traditional leather and also eliminate "animal cruelty concerns," the companies said.
But some detractors consider the project misleading. University of Maryland vertebrate paleontologist Thomas Holtz, Jr. pointed out to Live Science, a science news site, how the lab-created skin won't be authentic because there's no actual T. rex skin or DNA to serve as a basis. "What this company is doing seems to be fantasy," he said.
Calling the announcement a "gimmick," Tom Ellis, professor of synthetic genome engineering at Imperial College London, told NBC News, 'I doubt that our knowledge of dinosaur evolution is good enough to be able to design a collagen gene specifically from T. rex."
But researchers have found collagen in an 80-million-year-old Tyrannosaurus rex fossil and that can be used as a template, they say.
The Organoid Company is creating a T-Rex protein by using fragments of the T-Rex collagen protein from fossils, the companies said in a statement to USA TODAY.
"An important distinction is that (the companies) are starting with the language of proteins, amino acids, rather than the DNA itself," according to the statement. "This encodes what the 3D structure looks like and from this they can then recreate or 'molecularly resurrect' the DNA which is put into special cell lines for leather production."
The result of this reconstruction of ancient protein sequences is T. Rex leather, which is structurally identical to T. rex skin. "A biomaterial inspired by prehistoric biology," Mitchell said.
Eventually, T. rex leather could be used beyond handbags and clutches to cover chairs and vehicle seats. "The production of T-Rex leather demonstrates VML's commitment to pioneering new grounds and shaping the future of our industry," Korsten said.
Mike Snider is a reporter on USA TODAY's Trending team. You can follow him on Threads, Bluesky, X and email him at mikegsnider & @mikegsnider.bsky.social & @mikesnider & [e-mail]