
Crystagen 20mg
$69.99
Khavinson tripeptide Glu-Asp-Pro, studied in lymphocyte models of peptide regulation of gene expression. Research use only.
Add 2 more to unlock 5% off
Pairs with every vialISLA-H20 10mLBacteriostatic water for reconstitution$19.99Identity
Crystagen is the tripeptide Glu-Asp-Pro (EDP), the member of the Khavinson series assigned to immune tissue. It is distinct from Cortagen, the tetrapeptide Ala-Glu-Asp-Pro, which shares its three residues with an added N-terminal alanine.
Molecular target
No receptor. The mechanism proposed for this series is nuclear: short peptides entering the cell and binding directly at promoter sequences and to histones, altering which genes are transcribed.
Signalling pathway
For Crystagen the published readouts are in lymphocyte and thymocyte preparations, where the reported outcome is changed expression of genes associated with immune-cell differentiation. No signalling cascade is described because no receptor engagement is claimed.
Research context
Lymphocyte culture and immunological models from the originating group. As of 2026 no completed randomised controlled human trial exists for any member of this series; the peer-reviewed base is in vitro and rodent work.
Specification
- Form: lyophilised powder, sealed vial
- Purity: verified by high-performance liquid chromatography with mass spectrometric confirmation
- Analysis: third-party tested, full report published against the batch number on the vial
- Storage: 2-8 °C
Handling: See our step-by-step reconstitution protocol, and our guide to bacteriostatic water vs sterile water for choosing a diluent.
For laboratory research use only. Not for human or veterinary use.
Important
- ISLA-H20 sold separately
- Syringes not included
- Supplied as lyophilised powder
- Third-party tested, every batch
Money-Back Guarantee
14-day return policy
Third-Party Tested
Bioviridian verified, every batch
Customer Support
Real people, real answers
Fast US Shipping
Same-day dispatch
All products are supplied strictly for in-vitro laboratory research purposes only. Not for human consumption, medical, or veterinary use. Isla Longevity does not condone the use of peptides outside of controlled scientific research. By purchasing, you acknowledge that you are a qualified researcher or institution and are at least 21 years old.
? Details
Intended Use: Supplied for laboratory research purposes only. All peptides require reconstitution with ISLA-H20, sold separately.
Form: Lyophilised (freeze-dried) powder in a sealed sterile vial.
Storage: Store the vial in a cool, dry place away from direct light. Once reconstituted, keep refrigerated at 2–8°C and use within the recommended timeframe.
Solubility: Reconstitute with ISLA-H20. Avoid repeated freeze–thaw cycles to preserve integrity.
Testing: Every batch is independently analysed by Bioviridian for identity (LC-MS) and purity (HPLC), with the certificate published in our COA Bank.
Independent Lab Testing
Verified by Bioviridian
Certificates from our current batches. Every batch is analysed by an independent laboratory for identity (LC-MS) and purity (HPLC), and the full report is published in our COA Bank.
Continue browsing
Researchers also viewed
Pinealon 20mg$69.99View details →
Ovagen 20mg$69.99View details →
Cartalax 20mg$69.99View details →
Testagen 20mg$69.99View details →
Pancragen 20mg$69.99View details →
Vesugen 20mg$69.99View details →
Cardiogen 20mg$69.99View details →
Vilon 20mg$69.99View details →
REM Spray$128.99View details →
BPC-157 Spray$85.99View details →
Cognitive Stack$195.00View details →
Sermorelin 10mg$79.99View details →
TB-500 Capsules$109.99View details →
Longevity Stack$249.00View details →
MOTS-C Price range: $109.99 through $189.99View details →
VIP 10mg$69.99View details →
Semax + Selank + Dihexa Spray$128.99View details →
Dusk Topical (Selank)$198.99View details →
Ipamorelin 10mg$59.99View details →
Semax 10mg$45.00View details →








