Profitable DTC Methylene Blue Supplement — $500K+ in 4 Months, 200 Subscribers

This direct-to-consumer nutraceutical business specializes in methylene blue supplements, a growing category within the biohacking and cognitive health space. With a proven product-market fit, the business generated over 500K in revenue within the first four months and has maintained profitability through effective paid advertising strategies. The subscription model, currently yielding $8.5K MRR with ~200 active subscribers, provides a strong foundation for recurring revenue. The business operates with a lean structure, outsourcing fulfillment, customer support, and ad management, requiring only minimal owner involvement. With high customer satisfaction, strong retention, and significant upside potential, this business offers an excellent opportunity for growth, especially with additional cash flow or investment to scale rapidly.