Production and Certification of Transfer Factors in America
4Life® maintains the highest quality standards in the manufacture of all of the company’s products. It pays the utmost attention to the renewal and production of transfer factors products. All raw materials are thoroughly tested, suppliers are checked and the approval process goes through regularly.
This elaborate process has been established and has been in operation for over 20 years to ensure that the ingredients used are of the highest quality and must meet the stringent requirements and standards of the American pharmaceutical industry. All products contain only natural ingredients; due to their natural origin, there may be some variation in the shade and density of the final product. The activity of the ingredients and the purity of the product are in accordance with the manufacturing specifications.
First Patent Transfer Factors USA
Product quality is the main achievement of the 4LIFE RESEARCH USA manufacturers: https://www.youtube.com/watch?v=iunHRAo8DXc&t=155s
Physicaians desk reference USA:https://www.4life.com/corp/video
http://transferfactor.hu/wp-content/uploads/2019/02/Pro-TF-free-of-adulteration-certificate.pdf