+86 13759939507 Theanine Research: Leading OEM Factory for Quality Supplements
At Risun Bio-Tech Inc, we specialize in premium Theanine Research backed by extensive studies and quality assurance. As an ODM and trusted exporter, we understand the importance of providing high-quality ingredients that meet the demands of today’s market. Our factory is equipped with cutting-edge technology, ensuring that our L-Theanine products are produced to the highest standards


