Not medical advice. Talk to your provider before using any peptide.
Full disclaimerPeptide Schedule Research TeamReviewed Apr 20265 Citations
Crystagen4 residuesAEDREach bubble = one amino acid. Size = residue mass. Color = chemical class.Crystagen is a synthetic thymus tripeptide from the Khavinson bioregulator program. Oral capsules (20 mg/day for 30 days) normalized immune markers in 82% of elderly patients in one Russian clinical observation. All published data comes from a single research group. No Western trials exist.
20mcg · Daily
Summary: Add 0mL BAC water to your 20mg vial. Draw to < 0.1 units on a U-100 syringe for a 20mcg dose. This vial will last 0 doses.
View side effects and safety warnings →
| Level | Dose / Injection | Frequency |
|---|---|---|
| Beginner | 20mg | Daily |
| Moderate | 40mg | Daily |
| Aggressive | 20mg | 2x Daily |
Crystagen comes as oral capsules, so there's no reconstitution math. Each capsule contains 20 mg of the synthetic tripeptide (Glu-Asp-Pro). Take one capsule 15 to 20 minutes before a meal, once daily, for 30 days. Swallow whole with water. The thing most beginners miss: you won't feel anything. Crystagen works through epigenetic changes in immune cells that accumulate over 15 to 30 days. Lack of immediate effect is normal, not a sign of a bad product. Bloodwork is the only way to know if it worked. Get a CBC with differential and CD4+/CD8+ ratio before starting, then retest four to six weeks after finishing the course. Subjective "feeling healthier" is unreliable for immune peptides. Source your capsules from Khavinson-affiliated vendors (CosmicNootropic, iPept, Antiaging Systems). Look for CYTOGENS branding with Russian-language primary labeling. Avoid injectable vials sold by research peptide vendors; that format has zero clinical backing.
Dosing based on Khavinson Institute protocol — 8 published references.View all sources →
Cross-check your Crystagen reconstitution math with AI
Pricing updated 2026-04-09
Prices are estimates and vary by source, location, and prescription status.Full pricing breakdown →
Disclaimer: This curve is a simplified first-order exponential decay model. Actual pharmacokinetics vary based on injection site, individual metabolism, body composition, and other factors. Half-life values are approximate and based on available preclinical and clinical literature. Many research peptides lack formal human pharmacokinetic studies. This is for educational purposes only — not medical advice.
Crystagen is a synthetic thymus tripeptide from the Khavinson bioregulator program. Oral capsules (20 mg/day for 30 days) normalized immune markers in 82% of elderly patients in one Russian clinical observation. All published data comes from a single research group. No Western trials exist.
