This is our recommended replacement for no longer available Natcell Thymus spray :
ProBoost® Thymic Protein A :
A healthy immune system is essential to good health. Stress, improper diet and aging can all weaken your body's immune response.
ProBoost® Thymic Protein A is a natural supplement that supports the immune system and helps jump-start optimal immune response. ProBoost® has been called "the best single immune system supplement available" by medical & scientific experts.
ProBoost® uses Thymic Protein A to enhance proper immune system function, which makes it a good supplement for those with immunity-compromising conditions or disease that involve the immune system, or whose immune systems are compromised or suppressed.
DIRECTIONS: Empty one packet directly under the tongue and allow to dissolve for 3 minutes. Use 1-3 packets daily, as often every 4 hours, or as directed by a health care practitioner.
IMPORTANT: Allow packets contents to dissolve completely under the tongue before swallowing.
Relevant Recent Review:
Improved immune activation markers in Chronic Fatigue and Immune Dysfunction Syndrome (CFIDS) patients treated with Thymic Protein A.
— Michael E. Rosenbaum, M.D., Aresto Vojdani, PhD, Murray Susser, M.D., Cynthia M. Watson, M.D.
Journal of Nutritional and Environmental Medicine (article source)
"Thymic Protein A is the most potent way yet devised of rejuvenating the thymus gland in order to strengthen immune function with advancing age."
Life Extension Report - Anti-Aging (article source)
1. National Institutes of Health - Human
"These studies show that contrary to the expectation of enhanced HIV expression as is observed with other immune modulators, Thymic Protein A actually suppressed HIV production as measured by P24 antigen."
2. UCSD - Lymphoma Induced Cell Death
"This study demonstrates that mouse lymphoma cells undergo apoptosis (cell suicide) in the presence of Thymic Protein A."
Studies by the National Institutes of Health (NIH) and University of California at San Diego (UCSD)