Thymogen (Thymagen)

EW Dipeptide | Thymus Immune Bioregulator

Weight: 333 Da
Half-life: Not established
Chain: 2 amino acids
4 studies
2003 latest
Well Studied
Dose 10-20mg daily during cycle
Frequency Daily for 10-20 days, then break
Cycle 10-20 day cycles (bioregulator protocol)
Storage Injectable: 2-8°C. Nasal/topical: per product directions. Powder: room temp

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Thymogen (EW dipeptide) is a Khavinson bioregulator consisting of glutamic acid and tryptophan, originally isolated from calf thymus extracts (Thymalin) in the late 1980s. Developed by Professor Vladimir Khavinson, it has been registered in Russia since 1990 in multiple forms including injectable solution, nasal spray, and topical cream. Thymogen modulates both humoral and cellular immunity, activates T-cell differentiation, and has demonstrated geroprotective (anti-aging) and antitumor activities in research studies.

Mechanism of Action

Thymogen works through multiple immunomodulatory mechanisms: (1) activates T-cell differentiation and T-cell recognition of peptide-MHC complexes, (2) induces changes in intracellular cyclic nucleotide composition, (3) activates neutrophilic chemotaxis and phagocytosis, (4) normalizes T-lymphocyte concentrations and ratios (CD3+, CD4+, CD8+), (5) stimulates production of immunoglobulins (IgA, IgG, IgE, IgM), and (6) enhances lymphocyte differentiation receptor expression. Research suggests Thymogen may interact specifically with the AACG DNA sequence, affecting gene expression. The peptide is rapidly distributed to thymus, lymph nodes, liver, adrenals, and kidneys.

01 Modulates humoral and cellular immunity
02 Activates T-cell differentiation
03 Normalizes T-lymphocyte populations (CD3+, CD4+, CD8+)
04 Stimulates immunoglobulin production
05 Enhances regeneration and cellular metabolism
06 Demonstrated geroprotective (anti-aging) activity
07 Antitumor activity in research models
08 Registered pharmaceutical in Russia
09 Multiple delivery forms available

Molecular Data

Molecular Weight
333 Da
Chain Length
2 amino acids
Type
Dipeptide bioregulator
Amino Acid Sequence
One-letter: E?
H₂N
E 1
O ‖ C
N
H
? 2
COOH
Glu
1

Glutamic Acid

Position 1

Trp
2

Trp (EW)

Position 2

N-terminus C-terminus
Hydrophobic
Polar
Positive (+)
Negative (-)
Modified

Research Indications

Immune Support
Immune System Modulation most effective

Modulates both humoral and cellular immune responses for balanced immunity.

T-Cell Function effective

Activates T-cell differentiation and normalizes CD3+, CD4+, CD8+ populations.

Immunoglobulin Production effective

Stimulates production of IgA, IgG, IgE, and IgM antibodies.

Post-Operative Recovery moderate

Studied for improving surgical outcomes through immune support.

Anti-Aging Research
Geroprotection effective

Demonstrated geroprotector activity in aging research.

Lifespan Extension effective

In combination with pineal peptides, showed significant mean lifespan increases in animal models.

Antitumor Activity moderate

Inhibits spontaneous carcinogenesis and shows robust antitumor effects in research.

Clinical Research Areas
Cancer Support moderate

Studied in Russia for regulating immune response in oncology patients.

Heart Disease emerging

Research interest in cardiovascular applications.

Diabetes Support emerging

Investigated for metabolic and immune aspects of diabetes.

Dosing Protocols

Injectable form for intramuscular or subcutaneous administration. This is the original delivery method registered in Russia. Typical protocols involve 10-20 day cycles repeated 2-3 times per year.

GoalDoseFrequencyRoute
Standard immune support10-20 mgDaily for 10-20 daysIM or SubQ
Maintenance protocol20 mg2-3 cycles per yearIM or SubQ

Reconstitution Instructions

Materials Needed:
  • Bacteriostatic water
  • Insulin syringes
  • Alcohol swabs
  • Sterile vial
  1. 1 Clean work area and hands
  2. 2 Reconstitute with bacteriostatic water
  3. 3 Inject slowly down vial wall
  4. 4 Gently swirl until dissolved
  5. 5 Store refrigerated at 2-8°C
  6. 6 Use within 4 weeks

Interactions

++
Epitalon
Combination showed significant lifespan increases and robust antitumor activity in research.
synergistic
++
Thymalin
Thymogen was isolated from Thymalin; they share complementary thymus-supporting mechanisms.
synergistic
++
Vilon
Both are Khavinson thymus dipeptides; often combined in comprehensive immune protocols.
synergistic
+
Thymosin Alpha-1
Different thymic peptides with complementary immune mechanisms.
compatible
+
Thymulin
Different structures and mechanisms; can be used together.
compatible

What to Expect

Hours
Rapid tissue distribution to thymus, lymph nodes, liver, kidneys
Days 1-10
T-cell activation and differentiation begins
During cycle
Immunoglobulin production stimulated; immune markers improve
Post-cycle
Effects persist due to cellular and epigenetic changes
Long-term
Cumulative geroprotective benefits with regular cycling

Side Effects & Safety

Common Side Effects

  • Generally well-tolerated
  • Injection site reactions (mild)
  • Minimal side effects reported in clinical use

Stop Signs - Discontinue if:

  • Signs of allergic reaction
  • Unusual immune symptoms
  • Severe injection site reactions

Contraindications

  • Active autoimmune diseases (use with caution)
  • Organ transplant recipients on immunosuppression
  • Known hypersensitivity to component amino acids
  • Pregnancy or breastfeeding

Quality Checklist

Good Signs

  • White to off-white lyophilized powder
  • Clear solution after reconstitution
  • Certificate of analysis with purity verification
  • Proper packaging and labeling

Warning Signs

  • Unknown source or unverified purity

Bad Signs

  • Discolored powder
  • Cloudy or particulate solution
  • Damaged packaging or broken seal

References

  • Immunomodulatory synthetic dipeptide L-Glu-L-Trp slows down aging and inhibits spontaneous carcinogenesis in rats
    Khavinson VKh, Morozov VG
    Biogerontology (2001)

    Thymogen demonstrated geroprotector activity and inhibited spontaneous carcinogenesis in aging rat models.

  • Natural and synthetic thymic peptides as therapeutics for immune dysfunction
    Journal of Immunopharmacology (1997)

    Review of thymic peptide therapeutics including Thymogen for immune modulation.

  • Peptide Bioregulators from Thymus and Pineal Gland
    Khavinson VKh et al.
    Biogerontology (2003)

    Significant lifespan increases and antitumor activity with combined Thymogen and Epitalon treatment.

  • Thymogen: Mechanism of Action Studies
    Russian Medical Research

    Thymogen activates T-cell differentiation, modulates cyclic nucleotides, and may interact with AACG DNA sequences.

Related Peptides

Epitalon synergistic

Combination showed significant lifespan increases and robust antitumor activity in research.

Thymalin synergistic

Thymogen was isolated from Thymalin; they share complementary thymus-supporting mechanisms.

Vilon synergistic

Both are Khavinson thymus dipeptides; often combined in comprehensive immune protocols.

Thymulin compatible

Different structures and mechanisms; can be used together.

Disclaimer

This information is for educational and research purposes only. Consult a healthcare professional before use.