Evidence-graded · Source-cited Peer-reviewer panel · 6 clinicians
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Preclinical Evidence

Preclinical Evidence is a recurring topic in our peptide coverage. This hub collects every article tagged Preclinical Evidence, newest first, each evidence-graded and tied to real, verifiable sources.

Peptide Encyclopedia

MGF (Mechano Growth Factor): Evidence, Mechanism & Status

A clinical monograph on MGF (IGF-1Ec) — the mechanosensitive IGF-1 splice variant marketed for muscle repair and satellite-cell activation. Compelling rodent mechanism, contested preclinical data, zero human trials, and an unsettled 2026 legal and anti-doping status.

Peptide Encyclopedia

LL-37: Evidence, Mechanism, Dosing & Legal Status

A clinical monograph on LL-37 — the only human cathelicidin antimicrobial peptide. Small topical wound-healing RCTs (grade B), strong preclinical mechanism, and a sharply double-edged immune profile.

Peptide Encyclopedia

Livagen (KEDA): Evidence, Mechanism & Legal Status

A clinical monograph on Livagen (KEDA; Lys-Glu-Asp-Ala) — a Khavinson 'bioregulator' tetrapeptide proposed to decondense aged chromatin and protect the liver. Single-lab preclinical signals only, no human trials.

Peptide Encyclopedia

Cardiogen (AEDR): Evidence, Mechanism, Dosing & Legal Status

A clinical monograph on Cardiogen (AEDR; H-Ala-Glu-Asp-Arg-OH), the cardiac-targeted Khavinson bioregulator tetrapeptide. Coherent in-vitro mechanism, zero human trials, and an unapproved 2026 legal status.

Peptide Encyclopedia

KPV Peptide: Evidence, Mechanism, Dosing & Legal Status

A clinical monograph on KPV — the anti-inflammatory tripeptide fragment of alpha-MSH. Deep rodent and cell-culture data for gut and skin inflammation, zero human trials, and an unsettled 2026 legal status.

Peptide Encyclopedia

IGF-1 LR3: Evidence, Mechanism, Dosing & Legal Status

A clinical monograph on IGF-1 LR3 (Long R3 IGF-1) — the IGFBP-evading, long-acting IGF-1 receptor agonist sold as a lab reagent. Real animal anabolic signal, zero human trials, and serious hypoglycemia and cancer-promotion concerns.

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IGF-1 DES (1-3): Evidence, Mechanism, Dosing & Legal Status

A clinical monograph on des(1-3)IGF-I — the truncated, IGFBP-evading IGF-1 analogue marketed for localized muscle growth. Potent in rodents, unproven in humans, and WADA-banned at all times.

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Humanin: Evidence, Mechanism, Dosing & Legal Status

A clinical monograph on humanin — the first mitochondrial-derived peptide. Deep preclinical cytoprotection data, intriguing human biomarker correlations, zero interventional human trials, and a real tumor-promotion caveat.

Peptide Encyclopedia

HGH Fragment 176-191: Evidence, Mechanism & Legal Status

A clinical monograph on HGH Fragment 176-191 — the C-terminal 'lipolytic tail' of growth hormone sold as a fat-loss peptide. No human RCTs, an antilipogenic animal mechanism, and a closely related analogue (AOD-9604) that failed its pivotal obesity trial.

Peptide Encyclopedia

Glycyl-Glutamine: Evidence, Mechanism, Dosing & Legal Status

A clinical monograph on glycyl-L-glutamine (Gly-Gln) — the stable glutamine-carrier dipeptide of parenteral nutrition that is also the endogenous β-endorphin-(30–31) neuropeptide. Real human-trial evidence for IV glutamine delivery; cardiometabolic claims are preclinical only.

Peptide Encyclopedia

SS-20 Peptide: Evidence, Mechanism & Legal Status

A clinical monograph on SS-20 — the Szeto-Schiller mitochondria-targeting tetrapeptide that protects mitochondria without antioxidant chemistry. Deep preclinical data, no human trials, and unapproved research-only status in 2026.

Peptide Encyclopedia

Follistatin / Follistatin-344: Evidence, Mechanism & Legal Status

A clinical monograph on follistatin and FS-344 — the activin-myostatin trap marketed for muscle growth. Real human signal exists only as small gene-therapy trials; the injectable peptide has no validated efficacy.

Peptide Encyclopedia

FGL (FGLL): Evidence, Mechanism, Dosing & Legal Status

A clinical monograph on FGL (FGLL) — the NCAM-derived FGFR1 agonist peptide marketed for memory and neuroprotection. Deep rodent data, one single-dose human safety study, and zero efficacy proof in people.

Peptide Encyclopedia

Epitalon: Evidence, Mechanism, Dosing & Legal Status

A clinical monograph on epitalon (epithalon, AEDG) — the synthetic pineal tetrapeptide marketed as a telomerase-activating geroprotector. Real circadian and cell-culture signals, no Western RCT, and a 2026 FDA inflection point.

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Pinealon (EDR): Evidence, Mechanism, Dosing & Legal Status

A clinical monograph on Pinealon (Glu-Asp-Arg / EDR), the Khavinson ultrashort neuroprotective tripeptide. Reproducible preclinical antioxidant data, no human RCT, and an unapproved 2026 legal status.

Peptide Encyclopedia

Dihexa: Evidence, Mechanism, Dosing & Legal Status

A clinical monograph on dihexa — the angiotensin IV-derived nootropic peptide promoted for cognition. Its evidence is preclinical only, its foundational mechanism papers were retracted for fraud, and its clinical prodrug failed an Alzheimer's trial.

Peptide Encyclopedia

Davalintide: Evidence, Mechanism & Legal Status

A clinical monograph on davalintide (AC2307) — Amylin Pharmaceuticals' second-generation amylin-mimetic peptide. Robust rodent fat-loss data, one unreported Phase 2 trial, and a program discontinued in 2010.

Peptide Encyclopedia

Cortagen: Evidence, Mechanism, Dosing & Legal Status

A clinical monograph on Cortagen (Ala-Glu-Asp-Pro) — the Khavinson-program 'cytogen' tetrapeptide marketed for nerve repair and neuroprotection. One intriguing rat nerve-regeneration signal, no human RCTs, and an unapproved-research-chemical legal status.

Peptide Encyclopedia

CJC-1295 No DAC (Mod GRF 1-29): Evidence, Mechanism & Legal Status

A clinical monograph on CJC-1295 without DAC (Mod GRF 1-29) — the short-acting, pulse-preserving GHRH analog. Solid preclinical pharmacology, no human RCT of the no-DAC molecule, and an unsettled 2026 legal status.

Peptide Encyclopedia

Chonluten (EDG): Evidence, Mechanism & Legal Status

A clinical monograph on Chonluten — the Russian "Khavinson" bronchial bioregulator sold as the tripeptide Glu-Asp-Gly (EDG). Single-lab in-vitro data on a related peptide, no human RCT, and an unapproved 2026 legal status.

Frequently asked

What is Preclinical Evidence?

Preclinical Evidence is a topic our editors cover across the site. This hub aggregates the related, evidence-graded guidance.

How often is the Preclinical Evidence hub updated?

This hub updates automatically whenever a new article is tagged Preclinical Evidence, so the latest coverage appears first.

Are Preclinical Evidence claims sourced?

Yes. Every article here grades its efficacy claims A-D and cites real, verifiable studies, regulatory documents or trial registries.

Medical Disclaimer · Read in full

PeptideVox is an evidence reference, not medical advice. Nothing here authorizes you to acquire, possess, or self-administer any compound.

01 · Not FDA-approved

The majority of compounds documented here are not approved by the FDA for human use. Approved drugs (e.g. semaglutide, tirzepatide) are noted explicitly and require a licensed prescriber.

02 · Research chemicals

Many peptides — including BPC-157 and GHK-Cu in injectable form — are sold strictly "for research use only — not for human consumption." Purity, identity, and dosing of such products are not regulated or guaranteed.

03 · WADA-prohibited

Several compounds are banned in competitive sport under the WADA Prohibited List. Athletes risk sanction regardless of intent or formulation.

04 · Consult a clinician

Always consult a qualified, licensed healthcare professional before considering any compound. Individual risk depends on your full medical context.

This content is for informational and educational purposes only · No physician–patient relationship is created · Evidence grades reflect published data as of the stated revision and may change.