PhytoFactor™
PhytoFactor™ by 4Life — Plant-Based Transfer Factor Peptides
Discover the Power of Plant-Based Transfer Factor Peptides
Meet PhytoFactor™, 4Life's innovation in immune support. After decades of pioneering Transfer Factor science, 4Life has taken a major leap forward with the discovery of plant-based transfer factor peptides—naturally occurring immune messengers found in the seeds of Brassica napus.
Backed by research, supported by peer-reviewed publications, and protected by patents pending, PhytoFactor™ brings a modern, sustainable, and scientifically advanced approach to immune wellness.*
What Is PhytoFactor™?
PhytoFactor™ is a proprietary blend of plant-derived transfer factor peptides—small molecules that help educate your immune system, supporting its ability to recognize, respond, and adapt to everyday challenges.* Traditionally sourced from colostrum and egg yolk, transfer factors now have a plant-based origin thanks to 4Life's breakthrough discovery.
With PhytoFactor™, you get:
Plant-based immune intelligence*
Naturally occurring peptides from Brassica napus seeds
Sustainable, renewable sourcing
A vegetarian-friendly immune support option
A next-generation extension of 4Life's Transfer Factor technology
Why PhytoFactor™ Matters
1. A New Era of Plant-Based Immune Support
PhytoFactor™ offers a clean, sustainable, plant-powered option with immune-educating activity comparable to traditional animal-based transfer factor sources.*
2. Supported by Real Science
4Life partnered with researchers to screen over 100 high-protein plants, identifying unique peptides capable of supporting immune function.* This research has been featured in scientific journals and is part of 4Life's long-term investment in evidence-based nutrition. Read more about the underlying science on our Transfer Factor Immune Science page.
3. Designed for Synergy
Rather than replacing traditional Transfer Factor, PhytoFactor™ is crafted to complement it. Combined, plant-based and animal-based transfer factors provide a broader range of immune support.*
4. Sustainability Without Compromise
As demand for plant-based options grows, PhytoFactor™ offers a way to support immunity without relying on animal-derived ingredients—an eco-friendly choice.*
How PhytoFactor™ Works
PhytoFactor™ interacts with immune cells by:
Helping immune cells communicate more effectively*
Supporting the body's natural ability to recognize potential threats*
Supporting overall immune readiness*
Promoting balanced, intelligent immune function*
These plant-based transfer factor peptides act like tiny messaging molecules—helping your immune system respond smarter, not louder.*
Where to Find PhytoFactor™
4Life Transfer Factor® Max (New Formulation)
Formulated with 300 mg of PhytoFactor™ combined with 4Life's classic Tri-Factor® Formula plus key immune-supporting nutrients, the upgraded Transfer Factor Max is the flagship of this new era—the most advanced immune support product 4Life has ever created.*
Who Is PhytoFactor™ For?
Health-conscious individuals wanting advanced immune support*
Those seeking plant-based or vegetarian-friendly options
Anyone looking to support resilience, energy, and overall wellness*
People who want scientifically studied supplements
4Life customers ready for the next generation of Transfer Factor
Why You'll Want It in Your Daily Routine
✔ Supports immune system readiness*
✔ Promotes healthy immune recognition*
✔ Delivers complementary support when combined with Tri-Factor®*
✔ Plant-based and sustainable
✔ Backed by 4Life's legacy of scientific leadership
Shop Transfer Factor® Max with PhytoFactor™ — free U.S. shipping, and we cover the sales tax.
About this page: Written and maintained by Kevin Moore, owner of 4LifeTransferFactorProducts.com and an independent 4Life Affiliate. Product and research information is drawn from 4Life Research's published materials and product labels. Last reviewed: August 2026.
*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.