ProBoost is extremely safe. It is made by cell culture in only one laboratory in the world, under the direct supervision of Immunologist Dr. Terry Beardsley, PhD—one of the world’s leading authorities on the thymus gland and its crucial importance for the proper functioning of the immune system. Dr. Beardsley has spent over 35 years studying the thymus gland and discovered the existence of Thymic Protein A. He currently holds U.S. and international patents for both composition of matter and use. His discovery was published in several scientific journals, including the Journal of the National Academy of Sciences (Vol. 80, pp 6005-6009, October 1983, Immunology).
Because Thymic Protein A is highly purified, all other proteins, fragments, or substances are filtered out leaving only the single Thymic Protein A, which is then freeze-dried and mixed with maltodextrin.
ProBoost is made from cloned cells taken from the thymus of one US calf. No animals were harmed to make ProBoost. ProBoost does not contain wheat or dairy products.