Manchester Peptides catalogue profile
IGF-1 LR3
A modified, longer-acting analogue of insulin-like growth factor 1 used to investigate IGF-1 receptor signalling. Laboratory research considers cell growth, protein synthesis and metabolic pathways; it is a research reagent rather than an approved medicine.
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Prices shown are the current catalogue guide prices.Vial · 1 mg
IGF-1 LR3
Product information
A modified, longer-acting analogue of insulin-like growth factor 1 used to investigate IGF-1 receptor signalling. Laboratory research considers cell growth, protein synthesis and metabolic pathways; it is a research reagent rather than an approved medicine.
Evidence and sources at a glance
- Human evidence
- There is no established clinical evidence base supporting IGF-1 LR3 as a bodybuilding, recovery or anti-ageing treatment.
- Regulatory context
- IGF-1 LR3 is a research reagent, not an authorised UK medicine.
- Long R3 IGF-1 study in pigs ↗Original animal study reporting growth and endocrine outcomes; findings do not establish a human benefit.
- Long R3 IGF-1 study in guinea pigs ↗Original animal experiment on organ growth and circulating IGF measures.
Plain-English identity
What is IGF-1 LR3?
Laboratory work uses it to explore IGF-1 receptor signalling, protein synthesis, cell growth, glucose handling and tissue-development pathways.
It is a research reagent rather than an approved medicine. Commercial material, biological activity and purity can vary, and claims about bodybuilding or recovery should not be treated as proven clinical outcomes.
Evidence and sources at a glance
- Human evidence
- There is no established clinical evidence base supporting IGF-1 LR3 as a bodybuilding, recovery or anti-ageing treatment.
- Regulatory context
- IGF-1 LR3 is a research reagent, not an authorised UK medicine.
- Long R3 IGF-1 study in pigs ↗Original animal study reporting growth and endocrine outcomes; findings do not establish a human benefit.
- Long R3 IGF-1 study in guinea pigs ↗Original animal experiment on organ growth and circulating IGF measures.
Third-party documentation
Certificates of Analysis
Reference reports concern the named submitted samples. A catalogue batch match has not been established; check the strength and source on each report.This should be treated as “not displayed”, not as evidence that analytical verification exists.
Browse all available COAsEvidence-led research guide
Go deeper into IGF-1 LR3
A laboratory-modified analogue of insulin-like growth factor 1 used to investigate growth-factor signalling.
Last reviewed 10 October 2026. Research and reference information only. This page does not provide dosing instructions, treatment recommendations or medical advice. Not for human or veterinary consumption.