Encyclopedia · Bioregulators

Crystagen

Evidence review

Evidence grade D

Evidence is primarily from animal and laboratory studies; human efficacy and an established dose are absent.

Reviewed Aug 10, 2026 3 linked authoritative sources

Crystagen is a commercial “peptide bioregulator” name associated with the tetrapeptide EDGQ. A patent and laboratory literature describe proposed immune or aging effects, but patents are ownership documents—not clinical evidence or regulatory approval.

What Crystagen is

Crystagen is a commercial “peptide bioregulator” name associated with the tetrapeptide EDGQ. A patent and laboratory literature describe proposed immune or aging effects, but patents are ownership documents—not clinical evidence or regulatory approval.

Evidence is preclinical

Published research measured molecular markers in aging spleen models and inflammatory responses in human cell cultures.[1][2] Teloryx found no controlled human trial establishing improved immunity, infection resistance, vaccine response, cancer outcomes, or healthy longevity.

Safety is unknown

No human dose-response, pharmacokinetic, adverse-event, immunogenicity, autoimmune-disease, pregnancy, cancer, or long-term safety program exists. Immune-marker changes cannot automatically be assumed beneficial.

Regulatory status

Crystagen is not FDA-approved. Compounded drugs are not premarket-verified for safety, effectiveness, or quality.[3] Teloryx publishes no dose or preparation protocol.

Evidence review

Sources and evidence

Citation numbers in the article link to the exact regulator records, trial registrations, and publications reviewed.

  1. Advances in GerontologyMolecular aspects of peptide immunoprotective activity in aging spleen (2014)
  2. International Journal of Molecular SciencesPeptides in human primary monocytes and THP-1 cells (2022)
  3. U.S. FDAUnderstanding the risks of compounded drugs (2026)