Protein Ingredients & Custom Supplement Manufacturing

Bulk protein ingredient supply and OEM manufacturing for supplement brands.

Our Core Capabilities

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OEM/ODM Manufacturing

Custom formulation, supplement manufacturing and private label solutions.

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Bulk Ingredients

Collagen peptides, vitamins, amino acids and specialty ingredients.

Who We Are?

Gensei Global Industries is a China-based manufacturer and supplier of dietary supplement ingredients, providing bulk raw materials and custom OEM/ODM manufacturing solutions to supplement brands and businesses worldwide. Collagensei is a brand of Gensei Global Industries, specializing in protein ingredients, collagen peptides, and related nutritional solutions.

Our manufacturing facilities and operations are based in China under Gensei Global Industries. We specialize in supplying collagen peptides, protein ingredients, protein extracts, vitamins, amino acids, and other specialty ingredients. Beyond raw material supply, we offer comprehensive dietary supplement OEM/ODM services, including custom formulation, ingredient sourcing, manufacturing, and packaging solutions.

To better serve international customers, we offer warehousing and supply options in the United States and Canada. Our U.S. warehouse supports protein ingredients, protein extracts, collagen peptides, and related products, helping customers access inventory closer to their markets. Product availability and delivery arrangements are confirmed according to individual requirements.

Quality and consistency are central to our operations. Gensei Global Industries maintains applicable quality certifications through ongoing compliance management and regular certification reviews, including annual assessments. Current certification documents and their applicable scopes can be provided upon request.

Whether you are sourcing bulk ingredients or developing a custom supplement product, Gensei Global Industries is committed to providing reliable manufacturing, flexible supply solutions, and professional support throughout your project.

Showcasing Innovation on the Global Stage

Gensei deeply understands the importance of building strong relationships with our clients. By attending global exhibitions, we engage in in-depth communication with customers from diverse cultural backgrounds, understand their specific requirements, and provide tailored solutions to help them succeed in the global market.

What Our Clients Say

"Working with Gensei has been a game-changer for our product line at HealthPro Nutrition. The quality of their protein peptides is exceptional, and we've seen a noticeable positive impact on our customers' results. Sarah Miller, our Head of Product Development, was particularly impressed with the consistency and purity of the ingredients. Gensei's team is knowledgeable and responsive, making the entire sourcing process smooth and efficient. We highly recommend Gensei to any company looking for reliable and high-quality dietary supplement raw materials."
Sarah Miller
Head of Product Development, HealthPro Nutrition
"As CEO of FitLife Supplements, I can confidently say that Gensei has been an invaluable partner in our growth. Their OEM and ODM services are top-notch. John Davis, our CEO, appreciated their comprehensive support, from selecting the right herb-extracts for our new joint health formula to designing the packaging. Gensei truly offers a one-stop solution, and their attention to detail is remarkable. We are extremely satisfied with the final product and look forward to continuing our collaboration with Gensei."
John Davis
CEO, FitLife Supplements
"Wellness Essentials Inc. relies on a consistent supply of high-quality vitamins and amino acids for our popular daily multivitamin. Gensei has consistently delivered on both fronts. Emily Carter, our Purchasing Manager, has always found their team to be incredibly helpful and their delivery times are consistently reliable, thanks to their warehouses. Gensei’s commitment to customer satisfaction is evident in every interaction. We highly recommend Gensei as a dependable mineral nutrients supplier and partner for any dietary supplement business.
Emily Carter
Purchasing Manager, Wellness Essentials Inc.

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