Thymic Protein A (TPA), 60 Packets with 4 mcg TPA/Packet - Immune Support Supplement by Genicel, Inc.

Great great stuff! My husband gets sick often. He takes one of these each morning and he’s much healthier!

This is the greatest thing for the flu season and for your average cold. I take it when I'm starting to feel sick and whatever I had seems to fade away. This is the best thing out there and don't waste your time with other remedies. This is the real thing.

This has saved me over and over again from getting sick in the winter. My immune system is weak and I frequently have to fight off a cold or flu, and this works like crazy.

Great product! Has helped my immune system as I’m dealing with leaky gut and food sensitivities. Clear reduction in reactions!

This product is a life saver.. anytime we feel like we are coming down with anything or just feeling depleted you take one of these and it goes away... This is no joke it’s great !

I feel more energy all of the time now that I have been taking two packs a day for about six weeks. I wanted to give my immune system a boost for a long term bacterial lung infection. I feel that this product has helped my body to fight this and that is why I have more energy.

I have used Proboost for several years. However, this most recent purchase has been different. Instead of the packets being attached to each other, they are already separated in the box. Also, the amount of Thymic A protein varies in each packet from almost none to the normal expected amount. This make me wonder if it is really Proboost or a knock off that I am taking and paying $45 for.

This was a terrific recommendation from Jacob Teitlebaum, MD in his book, "From Fatigued to Fantastic." It's helped the whole family stay healthier!