Justin Holdings

Justin Holdings, Inc. was a biotechnology holding company primarily known for its joint venture with Vyta Corp (formerly NanoPierce Technologies) to form BioAgra, LLC. The company focused on the development and commercialization of AgraStim, a purified yeast beta-1,3/1,6-D glucan product derived from spent brewer's and distillery yeast. AgraStim was marketed as an all-natural, organic feed supplement designed to replace growth-promoting antibiotics in the poultry, swine, and aquaculture industries by enhancing the immune systems of animals. While the company was active in the mid-to-late 2000s, its primary operations through BioAgra have since ceased following legal and financial challenges involving its partners.