Evidence Comparison
Compare IGF-1 LR3, PEG-MGF side by side using the same BACToBasics evidence dataset that powers the interactive comparison tool. The table below focuses on mechanism, regulatory status, human evidence, safety context, anti-doping context, and primary sources.
Growth Hormone & Performance
Not FDA-approved
No meaningful direct human therapeutic evidence
Modified long-acting IGF-1 analogue intended to signal through the IGF-1 receptor.
The compound is often discussed as if IGF-1 biology directly proves LR3 outcomes, but the direct human evidence base is extremely weak.
Open IGF-1 LR3 guide →Growth Hormone & Performance
Not FDA-approved
No meaningful direct human therapeutic evidence
Marketed pegylated mechano-growth-factor / IGF-1Ec-related peptide associated with growth-factor signaling claims.
PEG-MGF has a particularly large gap between mechanistic marketing claims and direct human evidence.
Open PEG-MGF guide →Save this comparison
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Regulatory status and evidence level are separate ideas. A compound can have meaningful human research and still remain investigational, while an FDA-approved product can have approval only for specific indications and formulations.
BACToBasics also separates direct human intervention evidence from animal, cell, endogenous-biology, or related-molecule evidence so weaker evidence does not inherit the certainty of stronger research.
This page is generated from the same structured evidence records as the main interactive compare tool. Updating a compound's regulatory status, evidence summary, safety context, or source list updates both experiences rather than maintaining separate copies.
Read the Research & Editorial Policy →Evidence behind the comparison
These deep links are generated from the compounds in this comparison, so research and development pages stay connected as the underlying datasets grow.
Open the sourced public research and clinical-development timeline.
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Research1 curated source in the BACToBasics Research Library.
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DevelopmentPreclinical / no established human program · No established development program.
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UpdatesOpen the sourced public research and clinical-development timeline.
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Research1 curated source in the BACToBasics Research Library.
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DevelopmentPreclinical / no established human program · No established development program.
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BACToBasics provides educational information only. Comparison pages are not medical advice, dosing advice, treatment guidance, anti-doping advice, or recommendations to use any compound.