1, NBTY company, USA. NBTY is the largest manufacturer of herbal and vitamin products in the United States. Is a leading company in the United States and even the world, engaged in research and development, production and sales of high-quality nutritional supplements.
2. Jamiesonlaboratoriesltd, Canada. Jemison is the world brand of vitamins. Its products have strong biological activity and are easy to be absorbed and utilized by human body. Known as a global safe health care product brand.
3. Nature made in America. NatureMade is the first manufacturer approved by AMWA of American Women's Medical Association.