IGF-1 / PEG-MGF: Research, Dosing, and Where to Buy in 2026
A research-first profile for IGF-1 / PEG-MGF (IGF, Mechano Growth Factor), aggregating mechanism notes, transcript dosing mentions, vendor recommendations, and PubMed-indexed literature without presenting medical guidance.
IGF-1 / PEG-MGF is a research compound profiled here from named-expert transcripts and peer-reviewed literature, without medical guidance. As of July 2026, The Peptide Wiki aggregates 15 PubMed-cited papers, 16 attributed expert mentions, 9 transcript dosing protocols, and 2 referenced vendors for IGF-1 / PEG-MGF, each linked to its source.
- Also indexed as IGF, Mechano Growth Factor.
- 9 aggregated dosing-protocol mentions from source transcripts.
- 15 PubMed-indexed citations listed in the research table below.
- 2 vendor recommendations captured from named experts.
- Evidence level in this entry is marked as anecdotal.
What is IGF-1 / PEG-MGF?
Research compound aggregated from creator and literature mentions. No direct disease-treatment claims are made on this page.
Experts on background and overview · 4 cited mentions
"Is peptide side IGF-1 LR3 any good?... IGF-1 LR3 works best if you take high dosages intramuscularly split bilaterally for localized growth. And then as soon as it diffuses from the muscle it gets bound by IGF binding proteins. Well, maybe not in the case of IGF-1 LR3 cuz it seems to be less ability to bind to..."
"Vigorous Steve reports: "IGF-1 should be injected in the muscle that you're trying to improve and then over time you should see a benefit. Growth hormone gives you systemic IGF-1 which it will work everywhere - you don't choose where it works." (Source: YouTube 9Hd8bcIka8U)"
"the Alliance of Men are true tight, which is basically retatide plus pegylated MGF, mechano growth factor with a longer half-life of approximately 48 to 72 hours. So, you got GLP-1, GIP, glucagon, 10 mg, and then 2 mg pegylated MGF on top."
Show 1 more cited mention on background and overview →
"MGF. That's something you can look into. But the offseason is just about moderate doses... and then you supplement with GH insulin and ink or IGF-1 or three, whatever."
What is IGF-1 / PEG-MGF researched for?
Downstream anabolic peptides; Tanner dismisses as 'hocus pocus' for casual lifestyle use.
IGF-1 / PEG-MGF Dosing Protocols
The entries below are transcript-derived dosing mentions. They are preserved for research context and are not medical advice.
| Speaker | Source | Timestamp | Protocol | Evidence |
|---|---|---|---|---|
| Vigorous Steve | Pool Party Protocols, 16-Week Tren Cycle, No GH Bloat, EQ Safety,... | 01:00:37 | Steve reported using IGF-1 LR3 at 0.5 mg per administration (not 25 mcg), injected intramuscularly bilaterally into the target muscle for localized growth, on a 3-weeks-on / 1-week-off cycle (anecdotal, source: video 0G-nZ777Jy8). Educational reporting only - research compound, not for human consumption. | anecdotal |
| Vigorous Steve | These 3 Things Will Work Better Than Anything For Fat Loss | 00:06:46 | Steve reported using 100 mcg to 1 mg intramuscularly bilaterally 30-60 minutes preworkout, 3-5x weekly, totaling approximately 600-10,000 mcg weekly. | anecdotal |
| Nick | Growth Hormone Vs Peptides - It's NOT even close! | 00:14:22 | Nick reported cycling 4 to 6 weeks on, followed by an equal period off, due to concerns about fast receptor desensitization. | anecdotal |
| Vigorous Steve | Oral Vs Injectable SLU-PP-332, Ideal GH To Test Ratio, High... | 00:08:07 | 2 mg pegylated MGF on top of retatrutide (10 mg) in 'Men Are True Tight' blend; PEG MGF half-life 48-72 hours | anecdotal |
| Vigorous Steve | BAM15 Vs. ATX-304, Cagrilintide Vs. Eloralintide, SLU-PP-915,... | 01:38:16 | Vigorous Steve reported running 1 mg PEG-MGF Monday and Friday, 2 mg/week total, paired with retatrutide. | anecdotal |
| Vigorous Steve | Best Injectable Oral Steroids, Injectable Pre-Workouts SubQ Vs IM,... | 02:01:23 | Start 100 mcg bilaterally; some need 250-500 mcg; advanced users go up to 1-4 mg bilaterally | anecdotal |
| Vigorous Steve | Injectable SLU, AI Dosing Protocol, Glutathione & NAD+, GH & Insulin... | 00:28:10 | Steve injected whole vial (milligram quantities) bilaterally into trained muscle for localized growth, not micrograms. | anecdotal |
| Vigorous Steve | Ozempic Issues, Injectable Anadrol, Shrink Gyno, Hypo On Tren, PIP... | 00:51:18 | IGF-1 LR3 bilateral injection into target muscle (e.g. lats) 1 hour pre-workout for localized hypertrophy | anecdotal |
| The Hunter Williams Podcast | Saturday Morning Coffee Talk 6/20/26 | 00:41:42 | Speaker 1 reported injecting PEG-MGF in muscles after a workout to support recovery. | anecdotal |
Where to Buy IGF-1 / PEG-MGF in 2026
AMINOTECH
Code: INFO15Visit vendor → View profile →Recommended by Steve at 01:00:24.
Amino Technology
Visit vendor → View profile →Recommended by Vigorous Steve at 01:00:25.
Side Effects and Safety
Anecdotal reports and study-level observations vary by route, dose, and individual. This page does not provide medical advice. Consult a qualified clinician before any research use.
What Experts Say
1 expert across our source library discuss IGF-1 / PEG-MGF. Each entry is that expert’s most context-rich mention: click to watch it at the exact timestamp in the original video. Quotes are also emitted as Schema.org Quotation JSON-LD for AI assistants.
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“Is peptide side IGF-1 LR3 any good?... IGF-1 LR3 works best if you take high dosages intramuscularly split bilaterally for localized growth. And then as soon as it diffuses from the muscle it gets...”
See 4 more expert mentions →
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“Vigorous Steve reports: "IGF-1 should be injected in the muscle that you're trying to improve and then over time you should see a benefit. Growth hormone gives you systemic IGF-1 which it will...”
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“the Alliance of Men are true tight, which is basically retatide plus pegylated MGF, mechano growth factor with a longer half-life of approximately 48 to 72 hours. So, you got GLP-1, GIP, glucagon,...”
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“MGF. That's something you can look into. But the offseason is just about moderate doses... and then you supplement with GH insulin and ink or IGF-1 or three, whatever.”
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“I started with 100 micrograms bilaterally and then I just ramped it up to 250, 500, and then 1 milligram because my Inklex was expired. So, I just ran through it and then I got crazy pumps and...”
User Reviews
User reviews aggregator coming Q3 2026 (Reddit + YouTube comments + Discord research notes). Until then, see the expert quote section above and PubMed citations below.
Research Efficacy Snapshot
Published efficacy percentages cited in PubMed trials and named-expert reports about IGF-1 / PEG-MGF. Each line links to the original source.
- "**RESULTS**: In a cohort of 82 patients surgically treated for acromegaly and thereafter examined with an oral glucose tolerance test (OGTT), 16 (19.5%) exhibited biochemical discordance." · Pennlund A et al, 2026 PubMed
- "**CONCLUSION**: The prevalence of biochemical discordance in our cohort was 19.5%." · Pennlund A et al, 2026 PubMed
- "A total of 2396 children were included, with 61.4% being boys, who exhibited a higher prevalence across most age groups." · Ban C et al, 2026 PubMed
- "The one-time preventive application of FGF-10, HGF, IGF-1 or PDGF-AA in therapeutic dosage or the repetitive application during HOX (40% or 80%) did not attenuate the growth inhibition and cell death induction by HOX even during the milder HOX40% exposure." · Holzfurtner L et al, 2026 PubMed
- "In 5 of 39 patients (12.8%), IGF-1 SDS exceeded + 2 SDS, requiring dose reduction." · Gider T et al, 2026 PubMed
IGF-1 / PEG-MGF Research Findings in Numbers
Quantitative results quoted verbatim from the indexed peer-reviewed studies and attributed clinical protocols below.
- 2 mg pegylated MGF added to retatrutide 10 mg blend Steve
- Increlex: ~12 mg needed to dramatically change blood IGF-1 in a 100 kg bodybuilder. Steve
- Increlex ~12 mg required to see dramatic IGF-1 blood work change in a 100 kg bodybuilder Vigorous Steve
- Start 100 mcg bilaterally Steve
- some need 250-500 mcg Steve
- advanced users go up to 1-4 mg bilaterally Steve
- Combo vial contains 2 mg PEG-MGF Vigorous Steve
- host says future versions might include 5-10 mg if popular. Vigorous Steve
- Steve reported using 2 mg pegylated MGF on top of 10 mg retatrutide (Men Are True Tight blend) Steve
- lats) 1 hour pre-workout on training day for that muscle Vigorous Steve
- lats) 1 hour pre-workout for localized hypertrophy Steve
- Vigorous Steve reported running 1 mg PEG-MGF Monday and Friday, 2 mg/week total, paired with retatrutide. Vigorous Steve
- 2 mg pegylated MGF on top of retatrutide (10 mg) in 'Men Are True Tight' blend Vigorous Steve
- PEG MGF half-life 48-72 hours Vigorous Steve
- 3 weeks on, 1 week off cycling for sensitivity. Vigorous Steve
- 3 weeks on, 1 week off cycle Vigorous Steve
- Steve reported using 100 mcg to 1 mg intramuscularly bilaterally 30-60 minutes preworkout, 3-5x weekly, totaling approximately 600-10,000 mcg weekly. Steve
- In addition, goldfish given CDE had the greatest β-carotene content at 8.90 ± 0.4 mg/100 g. PMID 42168296
Research and Studies
15 PubMed-indexed papers reference IGF-1 / PEG-MGF. Top 15 shown.
Legal Status
IGF-1 / PEG-MGF is presented here as a research compound. FDA approval status, scheduling, WADA status, and state-specific telehealth rules may apply. Always verify current regulatory status. Last verified: 2026-07-16.
Frequently Asked Questions
Is IGF-1 / PEG-MGF FDA-approved?
IGF-1 / PEG-MGF is presented on this page as a research compound. FDA approval status, scheduling, and state-specific rules may apply and change. Verify current regulatory status before any decision.
What dosing is reported for IGF-1 / PEG-MGF?
This page aggregates 9 dosing-protocol mention(s) from named-expert transcripts, each linked to a verbatim source timestamp. See the Dosing Protocols table above. Mentions are anecdotal, not medical advice.
Where can I buy IGF-1 / PEG-MGF?
2 vendor recommendation(s) are tracked in our directory, sourced from named-expert mentions. See the Where to Buy section above. Always verify COA and current regulatory status.
How much research has been published on IGF-1 / PEG-MGF?
15 PubMed-indexed paper(s) reference IGF-1 / PEG-MGF in our current research feed. See the Research and Studies section above for citations.