When you buy through our links, we earn a small commission — and that is what funds all the free education here. It never costs you more. Products are not intended to diagnose, treat, cure, or prevent any disease.
What it is
A purified bovine whey extract concentrated for its low-molecular-weight molecules — cytokines, interferon, lactoferrin, and other 'transfer factors' that act as messengers in the immune system. It is ultra-filtered to remove the large milk proteins and antibodies, leaving the small signaling molecules that support the normal, everyday communication between immune cells. It is about supporting healthy signaling, not doing your immune system's job for it.
Why the evidence supports it
The concept is grounded in how the immune system actually coordinates — through low-molecular-weight messenger molecules like interleukins and interferon, exactly the fraction this extract concentrates. The honest framing is the strength: the goal is supporting normal immune-cell communication, not supercharging anything, and the manufacturer is upfront that the benefits have been explored in preliminary animal and clinical studies rather than large human trials. So this is a modest, mechanism-led support with an early evidence base. It ties to the cell's Maintain function — the ordinary signaling immune cells use to stay coordinated, which is communication support only, not a treatment for any condition.
What it supports
- Supports healthy communication between immune cells
- Supports the immune system's normal everyday signaling
- Supports healthy immune-cell coordination as part of a balanced routine
- Complements a foundation of good sleep, nutrition, and minerals
Which function it supports
Ties to the cell's Maintain function via immune-cell signaling — supporting the normal communication immune cells use to stay coordinated. This is communication support only, not a treatment for any condition.
Learn the why behind this pillarHow it relates to your cells and mind
Every product here ties back to a specific job your body does. This one touches the functions below — follow either link to see the mechanism in full, then dig into the studies.
What it is made of — and the mechanisms behind it
Each ingredient acts on several of the body's functions. Taken together, this product touches these cell and mind functions — follow any to see the mechanism in full.
The ingredients
Mechanisms drawn from our ingredient knowledge base (1 profiled ingredients). Structure and function only — not a treatment claim.
The science on the ingredients
Modulation of the immune system and the response against pathogens with bovine colostrum concentrates.2002
A review of colostrum research concluded that bovine colostrum concentrate survives digestion intact enough to act in the lower gut, and has shown some benefit against specific infections in animal and human studies, though prevention results were limited.
Solomons NW — European journal of clinical nutrition
Effects of RRR-alpha-tocopherol on leukocyte expression of HSP72 in response to exhaustive treadmill exercise.2002
In 9 men, 8 days of vitamin E supplementation before exhaustive treadmill exercise slightly lowered a stress-protein response in white blood cells 3 hours afterward, but the difference disappeared by 24 and 48 hours.
Niess AM; Fehrenbach E; Schlotz E; Sommer M; Angres C; Tschositsch K — International journal of sports medicine
Enhancement of neutrophil function by ultrafiltered bovine whey.2001
In lab tests on calf neutrophils and in periparturient dairy cows, an ultrafiltered bovine whey product increased several measures of neutrophil activity, including a key bacteria-killing mechanism, without changing overall white blood cell counts in vivo.
Roth JA; Frank DE; Weighner P; Weighner M — Journal of dairy science
Modulation of human humoral immune response through orally administered bovine colostrum.2001
In 18 healthy adults given an oral typhoid vaccine alongside bovine colostrum or placebo for 7 days, antibody responses did not differ significantly between groups, though colostrum recipients trended toward a greater rise in one antibody type.
He F; Tuomola E; Arvilommi H; Salminen S — FEMS immunology and medical microbiology
Detection of cytokines in bovine colostrum.2000
Testing whey from cows at different lactation stages found colostrum contained significantly higher levels of several immune-signaling cytokines than later milk, with cytokine mRNA also detected directly in colostrum cells.
Hagiwara K; Kataoka S; Yamanaka H; Kirisawa R; Iwai H — Veterinary immunology and immunopathology
Nonspecific antibacterial factors in milk from cows immunized with human oral bacterial pathogens.1992
In dairy cows immunized against oral bacteria, milk collected after calving showed rising lactoperoxidase and iron-binding activity but falling lysozyme, and purified milk proteins stopped growth of the targeted bacteria in lab tests.
Takahashi N; Eisenhuth G; Lee I; Schachtele C; Laible N; Binion S — Journal of dairy science
Vaccination of cows with clostridial antigens and passive transfer of clostridial antibodies from bovine colostrum to lambs.1985
In cows vaccinated against clostridial bacteria, colostrum antibody levels rose with repeated vaccine courses, and feeding this colostrum to 12 newborn lambs gave them high antitoxin levels that protected them through 24 weeks of age.
Clarkson MJ; Faull WB; Kerry JB — The Veterinary record
The development of transferable drug resistance in Salmonella and its public health implications.1970
Baldwin RA — Journal of the American Veterinary Medical Association
Immunological outcomes of bovine colostrum supplementation in trained and physically active people: a systematic review and meta-analysisEstablishedExpert review2020
Pooling 10 randomized controlled trials in 239 athletes and physically active adults, this meta-analysis found bovine colostrum supplementation had no or only a low impact on serum and salivary immunoglobulin and immune-cell markers.
Glowka N; Durkalec-Michalski K; Wozniewicz M — Nutrients
Astragalus polysaccharide: a review of its immunomodulatory effectEmergingExpert review2022
This review found astragalus polysaccharide promotes macrophage phagocytosis, natural killer cell cytotoxicity, and dendritic cell maturation, positioning it as an immune-cell-communication component relevant to the transfer-factor-class formula lineage.
Li CX; Liu Y; Zhang YZ; Li JC; Lai J — Archives of Pharmacal Research
Transfer factor: past, present and futureLineageExpert review1989
This foundational review described transfer factor as a T-lymphocyte-derived peptide able to transmit antigen-specific and non-specific cell-mediated immune reactivity between individuals, though its precise mechanism was still undetermined.
Fudenberg HH — Annual Review of Pharmacology and Toxicology
Transfer factors or dialyzable leukocyte extracts as immunomodulating peptides: a conceptual review on broad spectrum of therapeutic areas, immunologic and clinical responses, trends and perspectivesEmergingExpert review2019
This conceptual review characterized dialyzable leukocyte extracts as heterogeneous peptide mixtures under 10 kilodaltons that modulate helper T cell, natural killer cell, and cytokine activity as immune messengers.
Tulina D; Chan MKS; Michele WBF; Pan SY — International Journal of Immunology and Immunotherapy
A review on transfer factor: an immune modulatorEmergingExpert review2013
This review summarized transfer factor as a low-molecular-weight leukocyte extract that stimulates helper T cells, natural killer cells, and macrophages, framing it within the broader cell-mediated immunity literature.
Krishnaveni M — Drug Invention Today
Natural killer cells in human colostrumEstablished1985
Using a fluorochrome-labeled monoclonal antibody, researchers identified natural killer cells making up roughly 0.5 percent of total cells in human colostrum, establishing a cellular basis for colostrum-derived immune activity.
Moro I; Abo T; Crago SS; Komiyama K; Mestecky J — Cellular Immunology
Discovery of transfer factors in plant-derived proteins and an in vitro assessment of their immunological activitiesEmerging2023
Screening 100 protein-rich plants for transfer-factor-like activity found seed proteins from radish and mustard enhanced natural killer cell cytotoxicity against target cells beyond colostrum-derived transfer factor in vitro.
Yimam M; Horm T; Cai S; O'Neal A; Jiao P; Hong M; Tea T; Jia Q — Molecules
Physicochemical characteristics of Transferon batchesLineage2016
Chromatographic and electrophoretic analysis of ten dialyzable leukocyte extract batches characterized the peptide and amino acid content underlying this transfer-factor-class product, establishing quality-control parameters for the extract.
Medina-Rivero E; Vallejo-Castillo L; Vazquez-Leyva S; Perez-Sanchez G; Favari L; Velasco-Velazquez M; Estrada-Parra S; Pavon L; Perez-Tapia SM — BioMed Research International
Randomized clinical trial to evaluate oral dializable leukocyte extracts as immunemodulator treatment in atopic dermatitisContested2014
In a double-blind, placebo-controlled trial, 58 pediatric patients with moderate atopic dermatitis given conventional treatment plus oral dialyzable leukocyte extract showed no significant additional clinical benefit over conventional treatment plus placebo.
Estrada Garcia A; Galicia Carreon J; Ramirez E; Toledo M; Estrada Parra S; Perez Tapia M; Jimenez Martinez MDC — World Allergy Organization Journal
Sequencing analysis and identification of the primary peptide component of the dialyzable leukocyte extract Transferon Oral: the starting point to understand its mechanism of actionEmerging2020
Peptide sequencing of an oral dialyzable leukocyte extract identified ubiquitin and a ubiquitin variant as its most abundant peptide components, a mechanistic starting point for understanding transfer-factor-class activity.
Vallejo-Castillo L; Favari L; Vazquez-Leyva S; Mellado-Sanchez G; Macias-Palacios Z; Lopez-Juarez LE; Valencia-Flores L; Medina-Rivero E; Chacon-Salinas R; Pavon L; Perez-Tapia SM — Frontiers in Pharmacology
In vitro studies during long-term oral administration of specific transfer factorLineage1996
Long-term oral administration of antigen-specific transfer factor altered in vitro lymphocyte reactivity measures in treated patients, offering laboratory-level evidence of sustained immune-cell modulation from repeated oral dosing.
Pizza G; De Vinci C; Fornarola V; Palareti A; Baricordi O; Viza D — Biotherapy
Effect of human colostrum on interleukin-2 production and natural killer cell activityContested1995
Human colostrum stimulated IL-2 production at low concentrations but inhibited both IL-2 secretion and natural killer cell cytotoxicity at higher concentrations, showing colostrum's immune effects are dose-dependent and not uniformly stimulatory.
Sirota L; Straussberg R; Notti I; Bessler H — Archives of Disease in Childhood: Fetal and Neonatal Edition
Astragalus polysaccharides exerts immunomodulatory effects via TLR4-mediated MyD88-dependent signaling pathway in vitro and in vivoEmerging2017
Astragalus polysaccharide activated macrophages and dendritic cells through toll-like receptor 4 and MyD88-dependent signaling in cell culture and mouse models, an immune-communication mechanism relevant to the astragalus component.
Zhou L; Liu Z; Wang Z; Yu S; Long T; Zhou X; Bao Y — Scientific Reports
Human colostrum contains an activity that inhibits the production of IL-2Contested1991
Human colostrum inhibited T-cell proliferation and IL-2 production by activated human and murine T cells in vitro, a non-cytotoxic suppressive activity that runs counter to a simple immune-boosting narrative.
Hooton JW; et al. — Clinical and Experimental Immunology
Transfer factor acting as IFN-gamma and IL-2 mRNA expression inductor in chicken vaccinated against avian influenzaEmerging2010
In vaccinated chickens, one unit of avian-specific transfer factor induced IFN-gamma mRNA expression in 100 percent and IL-2 mRNA expression in 75 percent of birds, demonstrating cytokine-inducing immune-communication activity.
Bravo-Blas A; Tellez R; Uribe S; Salmeron F; Valdes LM; Estrada-Parra S; Cobos Marin L — Archivos de Medicina Veterinaria
Balanced by design — we show supporting and contradicting findings. Search all studies
No product works in isolation
Every cell function above — Sense, Exchange, Transform, Build, Maintain, Adapt — needs the same broad base of optimal micronutrient levels running underneath it, all the time. aiE10 is not a stand-alone fix; it is one piece that plugs into that larger system. The foundation comes first, and this supports it.
Stacks well with
Pick your goal — here is what aiE10 pairs with for each. Nothing works in isolation; these share the same systems.
For Immune
Foundational, or targeted?
Not everything in the shop is meant to be taken forever. Some products here are foundational — a daily nutrient base built for long-term, ongoing use. Others are targeted -- shorter-term support for a specific season, not a lifelong habit. If you are not sure which one this is, that is a fair question to ask us before you buy.
Learn more, on your terms
Do not take our word for it — go read. Each topic below opens a pre-loaded search so you can explore the nutrient, the mechanism, or the device for yourself.
Search the full studies libraryHow to use it
Take the labeled serving with water, on the schedule the brand suggests. Consistency day to day matters more than timing. Follow the label.
Where to get it
We are lining up the best way to get this one to you. In the meantime, reach out and we will point you the right way — or browse the full shop to see every product.
See the full shopThe studies
See the research behind the science we point to.
Explore studiesThe blog
Plain-language reads on how it all fits together.
Read the blogOptimal nutrients are the definition of longevity
Long-term cell function depends on having what it needs, at the level it needs it, for as long as it needs it. That is the whole thesis behind everything we point you to here.
When you buy through our links, we earn a small commission — and that is what funds all the free education here. It never costs you more. Products are not intended to diagnose, treat, cure, or prevent any disease.
aiE10 is designed to support the normal, everyday signaling between your immune cells — the ordinary communication your immune system uses to stay coordinated. It is about supporting healthy communication, not about doing your immune system's job for it. It fits people who want grounded, everyday immune-signaling support.
Common questions
What does aiE10 support?+
It supports healthy communication between immune cells, the immune system's normal everyday signaling, and healthy immune-cell coordination as part of a balanced routine, and it complements a foundation of good sleep, nutrition, and minerals.
How do I take it?+
Take the labeled serving with water, on the schedule the brand suggests. Consistency day to day matters more than timing. Follow the label.
What makes it different?+
The framing is modest and honest — it works with your immune cells' normal signaling rather than promising to supercharge anything. That restraint is the whole point.