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

IGF 1

IGF 1 is a recurring topic in our peptide coverage. This hub collects every article tagged IGF 1, newest first, each evidence-graded and tied to real, verifiable sources.

Sexual & Hormonal Health

Best Peptides for Growth Hormone Optimization: The Evidence Ranked

An evidence-first ranking of the GH secretagogues sold for 'growth hormone optimization' — tesamorelin, MK-677, CJC-1295, sermorelin and ipamorelin — separating what raises GH/IGF-1 in humans from what only sounds like it should.

Peptide Encyclopedia

PEG-MGF: Evidence, Mechanism, Dosing & Legal Status

A clinical monograph on PEG-MGF — the pegylated Mechano Growth Factor E-peptide marketed for muscle repair and recovery. Preclinical-only evidence, no human trials, and a restricted 2026 legal status.

Peptide Encyclopedia

CJC-1295 with DAC: Evidence, Mechanism & Legal Status

A clinical monograph on CJC-1295 with DAC — the albumin-tethered, long-acting GHRH analog. Small Phase 1 RCTs prove it raises GH and IGF-1 for days (Grade B), but no clinical-outcome trial exists, and it is unapproved and banned in sport.

Frequently asked

What is IGF 1?

IGF 1 is a topic our editors cover across the site. This hub aggregates the related, evidence-graded guidance.

How often is the IGF 1 hub updated?

This hub updates automatically whenever a new article is tagged IGF 1, so the latest coverage appears first.

Are IGF 1 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.