Crystagen (EDP)

Substance: Glu-Asp-Pro (synthetic tripeptide) · Target tissue: Immune system / epithelial tissue

Immune-epithelial tripeptide; no database matches under its own name.

Extract counterpart: None established — this compound exists only as a defined synthetic fragment.

Matched publications in database: 0 (EXTRACT 0, SYNTHETIC 0, EXTRACT→SYN 0)

Extract vs synthetic gap: the human outcome data (including the 266-patient mortality cohort) was collected on extracts; vendors sell synthetic fragments. No head-to-head trial exists — evidence does not transfer between them. Details →

Khavinson studies (none matched)

Keyword-filtered from the 472-publication database (khavinson.info). EXTRACT/SYNTHETIC tags are title-text heuristics — verification is on the reader. Full tag legend: evidence-tiers.html

No publications in the 472-entry database matched this compound name under its common nomenclature. That is a statement about this source list (khavinson.info), not a proof that no Russian literature exists. See the full bibliography.

Independent (non-Khavinson) studies

None catalogued. To date there are zero independent Western human trials of any Khavinson compound, in any year. Independent in-vitro data exists for Epitalon only (two 2025 studies). If a study belongs here, add it to non-khavinson-research.json and rebuild.

Reddit meta-scrape

No Reddit community discussion exists for this compound. This is honest reporting — the peptide has essentially zero anecdotal footprint in the biohacking community. Absence of anecdotes is not evidence of safety or efficacy, but it does mean there is no community-level signal to analyze.

Measurement protocol — concrete testable endpoints

Immune markers (same panel as Thymalin: CD subsets, NK activity).

All endpoints on one page: measurement-protocols.html · Evidence-tier legend: evidence-tiers.html

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