Informational only. Not medical advice.INFORMATIONAL PLATFORM ONLY — NOT MEDICAL ADVICE, DIAGNOSIS, OR TREATMENT
Informational only. Not medical advice.INFORMATIONAL PLATFORM ONLY — NOT MEDICAL ADVICE, DIAGNOSIS, OR TREATMENT
An 83-aa modified IGF-1 analog with an N-terminal extension and Arg-3 substitution that reduce IGFBP binding. Research/cell-culture reagent — NOT FDA-approved for any human use. Distinct from mecasermin (Increlex), which IS FDA-approved. WADA-prohibited.
1 of 8 vendors lab-verified
Verified purity per dollar — the cheapest that's actually been tested
vial · 1mg· peptidesupplyco.com· price updated today
Lot IG105192026· tested 2026-05-20
$48.00✓ $48.00/mg
single-vial price — packs may be lower
vial · 1mg· simplepeptide.com· price updated today
$60.00✓ $60.00/mg
20% more per mg vs cheapest
single-vial price — packs may be lower
vial · 1mg· moglabs.bio· price updated today
$72.00✓ $72.00/mg
33% more per mg vs cheapest
single-vial price — packs may be lower
vial · 1mg· ionpeptide.com· price updated today
$90.00✓ $90.00/mg
47% more per mg vs cheapest
single-vial price — packs may be lower
vial · 1mg· kimerachems.co· price updated 2w ago
$79.99✓ $79.99/mg
40% more per mg vs cheapest
single-vial price — packs may be lower
vial · 1mg· skyepeptides.com· price updated today
$99.00✓ $99.00/mg
52% more per mg vs cheapest
single-vial price — packs may be lower
vial · 1mg· arcanepeptides.com· price updated today
$90.00✓ $90.00/mg
47% more per mg vs cheapest
single-vial price — packs may be lower
vial · 1mg· eternalpeptides.com· price updated today
$130.00−23%
$99.99✓ $99.99/mg
52% more per mg vs cheapest
single-vial price — packs may be lower
vial · 1mg· orosresearch.com· price updated today
$69.99$69.99/mg
single-vial price — packs may be lower
vial · 1mg· verifiedpeptides.com· price updated today
$65.00$65.00/mg
single-vial price — packs may be lower
vial · 1mg· peptidology.co· price updated today
$86.00$86.00/mg
single-vial price — packs may be lower
vial · 1mg· peptidetech.is· price updated today
Lot I3-001· tested 2024-07-23
$89.99$89.99/mg
single-vial price — packs may be lower
21 vendors not shown — trust grade below C, or not enough verified COA data yet. We only list sources with a C grade or better.
Best price trend
Lowest $/mg for IGF-1 LR3 · verified listings only
$59.95/mg
flat
Peptide Supply Co. has the lowest single-vial IGF-1 LR3 price at $48.00/mg among 15 COA-verified vendors on Disclosed Labs. Bulk or multi-vial deals may be lower. That's 52% less per mg than the most expensive option.
What is the price range for IGF-1 LR3?
Research-grade IGF-1 LR3 ranges from $48.00/mg to $99.99/mg across 12 verified sources, a 52% spread per mg.
How are IGF-1 LR3 prices verified on Disclosed Labs?
Every listed vendor holds a Grade C or better trust score, computed independently from lab Certificates of Analysis — not from payments or sponsorships. Prices are scraped and fact-checked daily. Vendors cannot pay to improve their ranking.
Check formulation: Lyophilized powder requires reconstitution before use. Pre-mixed solutions are more convenient but may have a shorter shelf life and higher prices.
Compare per-mg cost: Different strengths and quantities make direct price comparison difficult. Calculate the per-milligram cost to find the true best value.
Verify COAs: Look for vendors that publish per-batch Certificates of Analysis from named, accredited labs. Use the Full safety panel filter to require endotoxin, sterility, and heavy-metals testing on the current batch — not just HPLC purity.
Francis et al. (J Mol Endocrinol 1992; PMID 1378742) characterized LR3-IGF-1 as a fusion analog whose enhanced biological potency derives from reduced IGFBP binding; in IGFBP-free cell systems LR3 was actually LESS potent than native IGF-1, underscoring that the 'potency' is really reduced sequestration rather than intrinsically stronger receptor activation. Tomas (Growth Horm IGF Res 2001; PMID 11472075) infused LR(3)IGF-I into food-restricted rats and found it preserved body weight and nitrogen retention but did NOT conserve skeletal muscle protein — which contradicts the common 'potent muscle builder' framing from preclinical literature alone. There are no controlled human trials supporting bodybuilding use. Epidemiologic and mechanistic work reviewed by Grimberg (Cancer Biol Ther 2003; PMID 14688466) links elevated IGF-1 axis activity to breast, prostate, and colorectal cancer risk, so chronic systemic LR3 exposure carries a concrete — not merely theoretical — tumorigenesis concern. IGF-1 and its analogs are banned at all times under the WADA Code.
This platform provides informational tools only, not medical advice.
Novel recombinant fusion protein analogues of insulin-like growth factor (IGF)-I indicate the relative importance of IGF-binding protein and receptor binding for enhanced biological potency (Francis et al., J Mol Endocrinol)
1992
Insulin-like growth factor-I (IGF-I) analogue, LR(3)IGF-I, ameliorates the loss of body weight but not of skeletal muscle during food restriction (Tomas, Growth Horm IGF Res)
2001
Prices verified as of July 2026. Actual prices may vary. For research use only.
Single-vial list prices by default for a fair head-to-head — switch to Multi-vial / bulk for pack pricing. Estimates only; verify at vendor before purchase. For research use only. Not medical advice.
Mechanisms by which IGF-I May Promote Cancer (Grimberg, Cancer Biol Ther) — review of IGF-1 axis and tumorigenesis
2003
Disclosed Labs