Activate Humankind.

What is Thymic Protein A?

To put it simply, Thymic Protein A (TPA) is one of the most essential components of your immune system—helping in the formation and activation of your body’s T-cells. Fortunately, your thymus gland starts producing TPA even before you’re born. Unfortunately, however, your thymus begins shrinking after puberty, producing less Thymic Protein A as you age.

ProBoost exists to take over where your thymus gland stops—providing complete, fully-intact Thymic Protein A to keep your immune system functioning properly.

Thymic Protein A + Collagen I & III

New TPA Capsules

ProBoost 4mcg TPA Capsules + Collagen I & III. Our new TPA capsules offer the power of our original 4mcg powder packet, plus collagen types I & III; now, for the first time, available in a swallowable capsule.

Thymic Protein A has been called, "the best single immune system supplement available," not just for its advanced immune modulating capabilities (recognized by the NIH), but also for its anti-aging benefits. Combined with the documented advantages of grass-fed bovine collagen, ProBoost TPA caps have improved upon 30 years of proven success.

TPA in Two Minutes:

How Thymic Protein A Works

Since 2000, I have been using ProBoost Thymic Protein A with my patients with great results. It is MY GO-TO SUPPLEMENT for patients needing immune support. ProBoost helps restore proper immune function.

- DR. JAMES HOWARD, ND

Sign up for our newsletter

Get the latest on promotions, new products and sales. Directly to your inbox.

These statements have not been evaluated by the U.S. Food & Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.