Choosing a health supplement manufacturer is not just a purchasing decision. For B2B buyers, it is a commercial, technical, and operational decision that directly affects product quality, launch timing, working capital, and long-term supply stability. A manufacturer that looks competitive on paper may still create problems later if its MOQ structure is inflexible, its samples do not reflect production reality, or its quotation leaves out key cost items. That is why buyers evaluating contract manufacturing health supplements partners should look beyond unit price. The better question is not simply “Who can make this product?” but “Which manufacturer can support this project with the right balance of cost transparency, technical fit, and execution reliability?” This guide breaks that decision into five practical steps, with special attention to MOQ, sampling, and hidden costs, three of the most common sources of confusion in supplement sourcing.