Laboratory · Latest Discovery

PhytoFactor™
plant-based transfer factor.

A five-year search through hundreds of plant species. One seed that changed everything. PhytoFactor is the most significant advancement in immune peptide technology in over a decade — bioactive peptides derived from Brassica napus seeds, working with your body's own immune intelligence.^*

See the three new products The discovery story

Available July 1, 2026

Recognition 2025 Gold Globee®

Research 70+ years

It started with one question

Do you have any vegan sources of transfer factors?

— A 4Life Affiliate · asked at a 4Life convention, several years ago

Years of research

300+

Plant species screened

Plant that won (Brassica napus)

UNIGEN

Plant research partner

This is the seed that changed it.

Brassica napus — the species behind canola and rapeseed. Hundreds of plants were screened. This one carried bioactive peptides associated with a defense intelligence the 4Life team had been hunting for. Tap a hotspot to see what makes it different.

1Defense peptides

Plants can't run. So they evolved bioactive defense peptides built into the seed itself — ready to deploy from the moment the plant exists.^*

2First in its class

PhytoFactor targets identified immune peptides — not a generic botanical extract. The peptides are specified, isolated, and supported by exclusive peer-reviewed science.^*

3Clean & concentrated

Cold-processed and concentrated to retain bioactivity. The ingredient supports cellular resilience and healthy immune activity.^{*^}

4Vegan source

The first plant-sourced transfer factor peptide ingredient from 4Life — making targeted immune education accessible to vegan and vegetarian users.^*

Plants can't flee. They evolved to stand and defend.

Animal immunity learns through movement, encounter, and adaptation. Plant immunity is built-in from the start — a robust on-board system because plants can't get away from a threat. PhytoFactor brings that intelligence into a form your body can use.^*

Plant immunity

Stand & defend

Continuous exposure to environmental threats meant plants had to evolve robust, on-board defense systems. Brassica napus seeds carry peptides associated with this stand-and-defend strategy — immune intelligence wired in from the start.^*

Built-in resilience

Animal immunity

Recognize, respond & remember

Animal-sourced transfer factors — UltraFactor^®, OvoFactor^®, NanoFactor^® — help the immune system recognize, respond, and remember health threats. They teach. They adapt. Three of the four Rs of immune intelligence.^*

Adaptive learning

The 4 Rs of immune intelligence

Recognize

Identifies threats by their molecular signature.^*

Respond

Activates the immune system within two hours.^*

Remember

Builds adaptive immune memory for next time.^*

Renew

Mobilizes millions of stem cells — cellular renewal. The newest R, made possible by PhytoFactor.^*

NEW with PhytoFactor

The full four-factor immune signal.

For the first time, 4Life's most advanced formula combines all four transfer factor sources — the three established animal-derived factors with PhytoFactor — into a single broader-spectrum immune ingredient.^*

Three new products. One breakthrough ingredient.

Prelaunched at the 2026 convention. Each format meets you somewhere different in your daily wellness rhythm — clinical-strength capsules, daily greens beverage, or a functional herbal tea for the whole family.

Clinical Strength 4Life Transfer Factor Max bottle

4Life Transfer Factor® Max

with PhytoFactor™ and IP-6 · 120 veggie capsules

The first 4Life formula to combine all three transfer factor sources — plant, colostrum, and egg — in one capsule. Clinical-strength immune support, the most advanced formula 4Life has ever made.^*

Peptides from Plant, Colostrum & Egg Increases immune stem cells^*1 90%+ immune cell coverage^*2 2-hour immune activation^*3 NK, B, T cells · neutrophils · macrophages^*2

For: daily clinical-strength immune support. The flagship formula.

Plant-Powered 4Life Super Greens box with PhytoFactor

4Life Super Greens™

with PhytoFactor™ · 15 packets (8g each / 120g total)

The only greens drink in the world with 300 mg of PhytoFactor. Nutrient-dense greens, grains, and roots in an on-the-go stick pack — delicious enough that the whole family ages 6+ will actually drink it.^{*^}

Plant-based TF peptides Vegan immune support^{*^} Promotes gut & digestive health^* Non-GMO · Gluten free · Keto & Paleo Certified GMP

For: a daily nutrition stack you'll actually keep. No added sugar, ages 6+.

Caffeine Free 4Life Immune Tea Honey Lemon Ginger pouch

4Life Immune Tea

Honey Lemon Ginger · with PhytoFactor™ & Vitamin C · 15 tea bags

A vegan, caffeine-free herbal tea that bridges modern peptide science with classic honey-lemon-ginger comfort. Throat-soothing, ginger for digestion, and a daily wellness ritual the whole family can take part in.^{*^}

Immune peptides from plants Vegan-friendly rapid response^{*^} Organic herbal blend Ginger for digestive comfort Throat-soothing Naturally caffeine free

For: the comfort ritual. A nightly cup that does more than warm you.

Validation beyond the lab.

Peer-reviewed science. Industry recognition. National media coverage. PhytoFactor isn't a claim — it's a category-defining advancement, recognized by people whose job is to scrutinize claims.

2025 · Wellness Innovation

Gold Globee® Award

4Life named the most innovative company of the year in wellness innovation — specifically for the PhytoFactor breakthrough.

📑

Peer-reviewed publications Published in Molecules and Applied Sciences — the peptide identification and mechanism work has been independently reviewed.

📜

Patent applications filed The discovery resulted in patent applications protecting the novel plant-based transfer factor peptide ingredient.

📺

National media coverage KUTV news segment featured Senior VP of Product Marketing & Development Kelly Bellerose explaining the discovery process.

🤝

Research partnership Co-developed with UNIGEN, screening hundreds of plant species over five years.

Seven decades of immune peptide research.

PhytoFactor isn't an isolated event. It's the next major chapter in a story that started when transfer factor was first identified in animal sources in 1949.

1949

Transfer factor discovered

Dr. H. Sherwood Lawrence identifies transfer factor in animal sources.

1998

4Life founded

David & Bianca Lisonbee launch 4Life Research, focused on transfer factor.

~2020

An Affiliate asks the question

A 4Life convention attendee asks the R&D team about vegan sources of transfer factor.

2025

Gold Globee Award

4Life recognized as most innovative wellness company of the year for PhytoFactor.

2026

PhytoFactor launches

Three products with PhytoFactor available July 1, 2026.

Available July 1, 2026

PhytoFactor is almost here.

Be on the team when these products go live. Get on Liv's first-day list — we'll ping you the moment ordering opens.

Days

Hours

Minutes

Seconds

Get on the first-day list Ask Liv about PhytoFactor Talk to a sponsor

Required Disclosures

* 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.

^ In a preclinical study.

References:

Gardner, D. et al. 2026. 4Life Technical White Paper.
Yu, L. et al. Curr. Issues Mol. Biol. 2024. 46:6710–6724.
Jensen, G. et al. 2026. Clinical Report 058-010.

4Life and the four-factor mark (UltraFactor®, OvoFactor®, NanoFactor®, PhytoFactor™) are trademarks of 4Life Trademarks, LLC. This page is published by independent 4Life Affiliates and is not an official 4Life corporate communication. Source content adapted from the official 4Life corporate blog.

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PhytoFactor™plant-based transfer factor.