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4Life makes three core Transfer Factor immune formulas — Tri-Factor®, Plus®, and Max — and they are easy to mix up. They share the same patented foundation but differ in what they add on top. This guide compares all three so you can choose with confidence.
Quick answer
- Want the simple foundational formula? Start with Transfer Factor Tri-Factor®.
- Want the best all-around daily formula (and our best seller)? Choose Transfer Factor Plus®.
- Want the most advanced, comprehensive support? Go with Transfer Factor Max.
Side-by-side comparison
| Feature | Tri-Factor® | Plus® | Max |
|---|---|---|---|
| Core peptides | UltraFactor™ + OvoFactor® + NanoFactor® | Tri-Factor base | Tri-Factor base + PhytoFactor™ |
| Peptide sources | Colostrum + egg yolk | Colostrum + egg yolk | Colostrum + egg yolk + plant (Brassica napus) |
| Added support | — | Super-mushroom blend + zinc | Most comprehensive blend |
| Best for | Daily foundation, first-timers | Everyday immune support | Maximum daily support |
| Form | Capsules | Capsules | Capsules |
Transfer Factor Tri-Factor: the foundation
Tri-Factor® is the original patented blend of UltraFactor™ (colostrum), OvoFactor® (egg yolk), and NanoFactor®. It delivers core transfer factor support without added ingredients — a clean, simple daily option and a great place to start.*
Transfer Factor Plus: the best seller
Transfer Factor Plus® takes the Tri-Factor base and adds a super-mushroom complex (shiitake, maitake, agaricus, and cordyceps) plus zinc to further nourish and activate key immune cells, including NK cells, T cells, B cells, and macrophages.* It is our most popular formula and the one most people choose for everyday immune support.
Transfer Factor Max: the most advanced
Transfer Factor Max adds a third peptide source — PhytoFactor™, derived from plants (Brassica napus seeds) — to the Tri-Factor base. Drawing immune-educating peptides from three sources, Max is 4Life’s most comprehensive daily immune formula.*
How to choose
If you are new to transfer factor and want something straightforward, begin with Tri-Factor. If you want the best balance of value and broad support, Plus is the popular default. If you want the most complete formula available, choose Max. Many customers also rotate or combine products based on their goals and season — explore the full Immune Support collection.
Frequently asked questions
Can I take Transfer Factor Plus and Max together?
They overlap in their core peptides, so most people choose one primary daily formula rather than doubling up. If you want to combine products, ask your healthcare provider.
Which is the strongest?
Max is the most comprehensive because it draws immune-educating peptides from three sources, while Plus adds mushrooms and zinc to the base.*
Is Tri-Factor enough on its own?
Yes — Tri-Factor delivers the full patented peptide foundation and is a complete daily option by itself.*
Do all three ship free and tax-free?
Yes. Every order ships free within the U.S. with no sales tax, same day from our U.S. warehouse.
Ready to choose?
Shop Transfer Factor Plus, Transfer Factor Max, or Tri-Factor today — free shipping, no sales tax.
*These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure, or prevent any disease.



