Our Story

How Fei’s background in risk management shaped her approach to health. Fei is a data analytics professional with over 15 years of experience in the financial services industry. She holds a master’s degree in Agricultural Economics and has extensive experience in new product development and risk management, emphasizing customer-centric solutions. Fei believes that managing health is similar to managing financial risks—both require proactive solutions to maximize the benefits and minimize the risks. Her personal health challenges led her to explore vitamins and supplements, including calcium for healthy muscle function, iron for energy support, and prenatal vitamins during pregnancy. Despite the wealth of information available, Fei struggled to find reliable and effective supplements. Many companies made unverified claims about their products, making it difficult for her to trust their effectiveness.

Derek’s unique expertise in understanding how health products really work. Derek, Fei’s husband, is a trained pharmacist with extensive knowledge of how different medicines and health products work. He holds a doctoral degree in Health Economics and Outcomes Research (HEOR), which means he studies how effective various health products are and whether they are worth the money. With over 15 years of experience in conducting large-scale research and analyzing and explaining data on the clinical and economic value of health products, Derek is passionate about the right use of dietary supplements to maintain health.

Why supplement quality and safety became personal for Derek. For Derek, his work is personal. He ensures that his family takes the right vitamins and supplements to address nutritional gaps and support overall well-being. His experience with his mother's bone health needs, which required calcium supplementation, highlighted the importance of proper labeling. His mother developed hyperthyroidism due to a mislabeled calcium supplement that contained iodine. Once she switched to a correctly labeled supplement that doesn’t contain iodine, her condition improved.

Derek’s FUEL method: building health choices on truth and evidence. Derek has always been focused on supporting his heart and metabolic wellness through food, use of supplements, exercise, and other lifestyle choices (what he calls the “FUEL” method). Upon researching supplement options, Derek noticed several challenges in today’s supplement market — from the overwhelming number of options, to how hard it can be to evaluate ingredient quality, and the fact that the level of research support often varies widely.  For everyday consumers, these challenges can create uncertainty and make it difficult to feel confident in choosing the right supplement. Along the way, Derek found a few hidden gems in the supplement market, but he still felt that none fully met his personal standards for both quality and research for his personal needs. To create a supplement that fully matches Derek’s personal criteria, Fei and Derek decided to build a company grounded in truth and facts.

EVYLO™: the solution Derek created for heart and metabolic health — for himself and others. Their first launch, EVYLO™, was designed with heart and metabolic wellness in mind. Derek felt this product finally gave him the confidence he had been looking for — and he wanted others to feel that same sense of trust. Their long-term goal is to offer products supported by strong, high-quality evidence, helping people save time and feel confident in their wellness choices. Read the story below to learn why EVYLO™, the product Derek includes in his own daily routine, was created.

Why We Created EVYLO

Derek Tang, PhD, MS, BSPharm

Founder & Lead Formulator, EVYLO