Crystagen 20mg | 10-Vial Kit | Pro-Glu-Asp Immune Bioregulator | T-Cell & B-Cell Research
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Crystagen (Pro-Glu-Asp / PED tripeptide, Khavinson Cytogen AC-5/AC-6 immune bioregulator) 20mg — >=99% HPLC purity, MS confirmed, Janoshik COA. Research use only.
$250.00
* The information on this page is a summary and is not intended to cover all available information about this medication. It does not cover all possible uses, directions, precautions, drug interactions or adverse effects and is not a substitute for the expertise and judgement of your healthcare professional.
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What is Crystagen??
Crystagen (peptide complex AC-5/AC-6, amino acids Pro-Glu-Asp) is a synthetic short-peptide bioregulator from the Khavinson Cytogen family, developed at the St. Petersburg Institute of Bioregulation and Gerontology for immune system restoration. It exhibits selective action on thymus tissue – improving thymic metabolism and tissue regeneration to restore T-cell synthesis, maturation and release. Unlike Vladonix (natural thymus extract), Crystagen as a Cytogen acts faster but with shorter duration. Research demonstrates Crystagen activates B-cell immune pathways in the spleen, increases CD3+/CD4+ T-cell counts, normalises CD4+/CD8+ ratios, preserves thymic cortex-medulla architecture, stimulates thymocyte proliferation (PCNA expression), and exhibits immunogeroprotective effects in gamma-irradiation accelerated ageing models.
Research Applications
Thymic Tissue Regeneration
Thymic metabolism restoration, cortex-medulla architecture preservation, T-cell maturation and release enhancement
T-Cell Immunology
CD3+/CD4+ T-cell count normalisation, CD4+/CD8+ ratio restoration, T-helper cell activation, PCNA proliferation marker
B-Cell & Splenic Immunity
B-lymphocyte activation in spleen, immunomodulatory effects distinct from T-cell bioregulators (vilon, thymogen)
Immunogeroprotection
Gamma-irradiation accelerated ageing model – thymic preservation, macrophage/mast cell restoration, age-related immune decline reversal
Immunodeficiency Restoration
Secondary immunodeficiency models (radiation, chemotherapy, infection) – immunogram normalisation, asthenic syndrome reduction
Quick Specs
| Form | Lyophilized powder |
| Purity | >=99% by HPLC – every batch |
| Peptide Complex | AC-5/AC-6 (Pro-Glu-Asp amino acids) |
| Peptide Type | Synthetic short-peptide bioregulator / Khavinson Cytogen – immune/thymus |
| Primary Target | Thymus tissue – T-cell maturation; secondary: spleen B-cell activation |
| Identity | MS molecular weight confirmed – every batch |
| COA | Janoshik-independent, publicly verifiable |
| Manufacture | In-house Fmoc SPPS – Qingdao, China |
| Storage | -20C sealed | 2-8C reconstituted (2-4 weeks) |
| Shelf Life | 24 months unopened |
Certificate of Analysis (COA)
Frequently Asked Questions
Frequently asked questions
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A seemingly elegant design can quickly begin to bloat with unexpected content or break under the weight of actual activity. Fake data can ensure a nice looking layout but it doesn’t reflect what a living, breathing application must endure. Real data does.
Websites in professional use templating systems. Commercial publishing platforms and content management systems ensure that you can show different text, different data using the same template. When it’s about controlling hundreds of articles, product pages for web shops.

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