TPA PowderThe original. Still unmatched. Your immune system doesn't get weaker as you age because something goes wrong. It gets weaker because something stops. The thymus gland quietly shrinks over time, and the protein it produces disappears with it. TPA Powder puts that protein back. One packet under your tongue. Thirty five years of trust behind it. Most immune supplements push harder. TPA works differently. Instead of stimulating your immune system

That's not immune boosting

TPA Powder Packets — the original format

And it's the only thing Humanset has ever done

no matter how your immune system is feeling

Non-GMO Ingredients

our low-dose

ProBoost TPA+Collagen Capsules (30)

These sublingual tablets make it more convenient than ever to get your daily amount of our patented Thymic Protein A

TPA Tablets are designed for daily maintenance

The ProBoost Capsule + Tablets Bundle includes:

Try our TPA Bulk Bundle with 60-serving options of each product

Some prefer a tablet they can take anywhere