Can I create a custom pre workout formula or only use a stock blend?

Both options exist. A white-label stock formula lets you launch fast at lower MOQ, while a custom blend gives you a signature caffeine-to-theanine ratio or clean-label profile at a higher minimum and added R&D time. Many founders start near-stock and move custom later. You can request stock and custom quotes in one brief on the AJ Cosmo Labs app.