Crystagen
Also known as: EDP, Glu-Asp-Pro, Thymus Tripeptide, Immune Bioregulator, Vladonix, Kristagen
EDP Tripeptide | Thymus Immune Bioregulator
Overview
Crystagen is a Khavinson bioregulator tripeptide (EDP) identified in thymalin with selective action on thymus tissues. Developed at Russia's St. Petersburg Institute of Bioregulation and Gerontology, it enhances immune function by stimulating normal lymphocyte proliferation while inhibiting tumor cell growth. Research shows effectiveness in normalizing immunity in 82% of elderly patients (vs 56% control) and reducing respiratory infections in athletes by doubling HSP gene expression.
Key benefits
- Normalizes immune function in 82% of patients
- Stimulates normal lymphocyte proliferation
- Inhibits tumor cell growth (antitumor activity)
- Doubles HSP gene expression (stress resistance)
- Reduces respiratory viral infections
- Activates B-cell immune system
- Normalizes IL-6 expression
- Effective after radiation/chemotherapy
Mechanism of action
Crystagen works through epigenetic regulation by influencing gene expression and protein synthesis in immune cells. It regulates the synthesis of heat-shock proteins, cytokines, and affects cell differentiation, proliferation, and apoptosis. The EDP peptide enhances spontaneous proliferative activity of normal lymphocytes while inhibiting proliferation of tumor cells (K-562 erythromyelosis). It activates B-cell immune system and thymic epithelial cells (VTEC2.H/S).
Molecular data
- Type
- Tripeptide bioregulator
- Half-life
- Minutes (short peptide); effects persist via epigenetic changes
Sequence
Glu-Asp-Pro
Indications
What the research community uses this compound for, with self-reported effectiveness.
Immune Support
Immune Dysfunction
EffectiveNormalizes immunogram in elderly patients with impaired immunity.
Post-Infection Recovery
EffectiveRestores immune function after infectious diseases.
Radiation/Chemo Recovery
EffectiveHelps normalize immunity after radiation and chemotherapy exposure.
Stress Resistance
Athletic Immune Support
EffectiveIncreases stress resistance and reduces respiratory infections in athletes.
HSP Expression
EffectiveDoubles expression of heat-shock protein gene HSPA1A.
Anti-Tumor
Tumor Cell Inhibition
ModerateInhibits proliferation of K-562 human erythromyelosis tumor cells.
Dosing protocols
Common protocols by delivery method. Adjust the curve below to model accumulation in your own cycle.
Oral
Available in capsule form for oral administration. Short peptides can be absorbed orally and reach target tissues. Typical protocol involves 10-20 day cycles, often repeated 2-3 times per year.
| Protocol | Dose | Frequency | Route / duration |
|---|---|---|---|
| Standard protocol | 10-20 mg | Daily for 10-20 days | Oral capsules |
| Maintenance | 10 mg | 2-3 cycles yearly | Oral capsules |
| Athletic support | 10-20 mg | Daily during training cycles | Oral capsules |
Injectable
Injectable form available for direct administration.
| Protocol | Dose | Frequency | Route / duration |
|---|---|---|---|
| Research protocol | 10 mg | Daily for 10 days | IM or SubQ |
Preparation
You will need
- Bacteriostatic water
- Insulin syringes
- Alcohol swabs
- Sterile vial
Steps
- Clean work area thoroughly
- Reconstitute with appropriate volume
- Gently swirl until dissolved
- Store reconstituted solution refrigerated
Work out the water volume and syringe units in the reconstitution calculator →
Interactions
Pairwise interactions with other compounds you might be cycling — the same data behind the cycle builder's safety check.
Vilon
SynergisticBoth have immunoprotecting properties; different mechanisms complement each other.
Thymalin
SynergisticCrystagen (EDP) is derived from thymalin; complementary immune effects.
Epitalon
SynergisticOften combined in comprehensive anti-aging Khavinson protocols.
Thymogen
CompatibleRelated immune peptides; can be used together.
Timeline
Typical week-by-week effects reported in clinical and observational data.
- During cycle
Immune activation and gene expression modulation begins
- Post-cycle
Effects persist due to epigenetic changes
- Weeks
Measurable immune function improvements
- Long-term
Cumulative benefits with periodic cycles
Safety
Reported adverse effects, contraindications, and what to monitor on cycle.
Common side effects
- Generally well-tolerated
- Minimal side effects reported
Rare side effects
- Allergic reactions (rare)
Stop signs — stop and seek advice
- Allergic reactions
- Unusual immune symptoms
Contraindications
- Active autoimmune flares (consult physician)
- Known hypersensitivity
- Pregnancy or breastfeeding
Quality checks
What a legitimate product looks like, what should give pause, and what should make you stop.
Good signs
- White powder or capsules
- Clear solution if reconstituted
- Proper packaging and labeling
Warning signs
- Unknown source or purity
Stop signs — don't use
- Discoloration
- Unusual odor
- Damaged packaging
References
Primary literature and clinical-trial data informing this entry.
The Use of Thymalin for Immunocorrection and Molecular Aspects of Biological Activity
PMC/NCBI · 2021
EDP (crystagen) identified in thymalin; regulates gene expression, HSP synthesis, cytokines, and cell differentiation.
Crystagen in Elderly Patients with Impaired Immunity
Advances in Gerontology · 2018
Crystagen normalized immunogram in 82% of patients vs 56% in control group.
Peptide Bioregulators in Athletes
Bulletin of Experimental Biology and Medicine · 2019
Crystagen doubled HSP gene expression, normalized IL-6, and reduced respiratory infections in athletes.
EDP Peptide Effects on Lymphocyte Proliferation
Cell Technologies in Biology and Medicine · 2017
EDP enhances normal lymphocyte proliferation while inhibiting K-562 tumor cell proliferation.
Last updated . How this page was sourced is described in the methodology.