Longevity Category
Crystagen
THE IMMUNE BALANCER
Glu-Asp-Pro Peptide
Crystagen is a synthetic three-amino-acid peptide (Glu-Asp-Pro) designed to regulate immune function. It works by entering immune cells and modifying gene expression to enhance T-cell activity while reducing excessive inflammation. It's particularly useful for aging individuals whose immune systems have declined.
Crystagen Evidence Snapshot
How these guides are reviewed- Regulatory status
- Not FDA approved · research use only
- Dosing guidance
- No established regimen
- Linked evidence
- Sources pending
- Content updated
- Sep 15, 2026
Research links are provided so readers can inspect the supporting evidence directly.
Quick Answers About Crystagen
Is Crystagen FDA approved?
No. This profile records Crystagen as not FDA approved and for research use only.
More context
Review the regulatory and source details on this page for the current context.
What research supports this Crystagen guide?
No linked research sources are currently available on this guide.
More context
Treat the profile as provisional until supporting sources are published.
What are the side effects of Crystagen?
Reported side effects of Crystagen include Rare hypersensitivity reactions.
More context
They are reported or occasional reactions, not a prediction of what any one person will experience.
Is Crystagen safe?
Crystagen has an editorial safety grade of A (Excellent Safety).
More context
Well-tolerated synthetic tripeptide with no significant adverse effects reported. Safety depends on dose, sourcing, health history and medical supervision, so this page does not call it safe for personal use.
Studied Effects & Mechanisms
Epigenetic Immune Boost
Modifies gene expression in T-cells to enhance function
T-Cell Support
Normalizes CD4+/CD8+ ratio and improves T-cell activity
Anti-Inflammatory
Reduces pro-inflammatory cytokines while boosting protective ones
Who is this for
Aging individuals with weakened immunity · People recovering from illness or chemotherapy · Those with chronic infections · Athletes under high training stress
Crystagen price snapshot
In-stock prices from 7 vendors, checked Oct 14, 2026.
- Vendors
- 7
- Listings
- 7
- Observed range
- $33–$65
Market evidence
Crystagen product testing and COAs
We found certificates from a few of the Crystagen vendors we track. Based on the certificates our crawler found; vendors may publish more than we index. Research on this page describes the molecule. Vendor certificates concern particular market samples or batches; they do not change the research evidence or establish clinical safety, sterility, or suitability for use.
The clinic network
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