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.
Lowest Price
$48.00
Highest Price
$765.00
Average Price
$125.14
Potential Savings
87%
across 32 options
3 of 32 vendors are lab-verified for IGF-1 LR3
We cross-check each vendor's Certificate of Analysis against the issuing lab's own verification portal — so “cheapest” isn't the only signal.
Best price trend
Lowest $/mg for IGF-1 LR3 · last 45 days
$25.70/mg
▼ 57% vs 45d ago
Trust grade first, cheapest within grade
vial · 1mgionpeptide.com· price updated today
Lot IGF1-052026· tested 2026-05-27
$90.00/mg
71% more per mg
vial · 1mgskyepeptides.com· price updated today
Lot IGF26-01-001· tested 2026-02-20
$99.00/mg
74% more per mg
vial · 1mgpeptidesupplyco.com· price updated 2d ago
Lot IG105192026· tested 2026-05-20
$48.00/mg
46% more per mg
vial · 1mgsimplepeptide.com· price updated today
Lot IGFR12172025-J· tested 2025-12-19
$60.00/mg
57% more per mg
vial · 1mgmoglabs.bio· price updated today
Lot IGF102· tested 2026-05-05
$68.00/mg
62% more per mg
vial · 1mgnoxamino.com· price updated today
$150.00−17%
$125.00$125.00/mg
79% more per mg
vial · 10mgzztai-tech.com· price updated today
$25.70/mg
vial · 1mgarcanepeptides.com· price updated today
Lot IGF102· tested 2026-05-05
$85.00−6%
$80.00$80.00/mg
68% more per mg
vial · 1mgpuratekpeptides.com· price updated today
$59.95/mg
57% more per mg
vial · 1mgcertified-pep.com· price updated today
Lot IGFLR325· tested 2025-12-19
$80.00/mg
68% more per mg
vial · 1mgpeptidetech.co· price updated 2d ago
Lot I3-001· tested 2024-07-23
$89.99/mg
71% more per mg
vial · 1mglicensedpeptides.com· price updated today
$138.88−10%
$124.99$124.99/mg
79% more per mg
vial · 1mgcernumbiosciences.com· price updated today
$104.99/mg
76% more per mg
vial · 10mgwellilabs.com· price updated 2d ago
$45.00/mg
43% more per mg
vial · 1mgs1research.net· price updated today
$60.00−20%
$48.00$48.00/mg
46% more per mg
vial · 1mgplatinumlionpeptides.com· price updated today
$75.00−33%
$49.99$49.99/mg
49% more per mg
vial · 1mgtruepeptidelabs.com· price updated yesterday
$55.00/mg
53% more per mg
vial · 1mgamc-essentials.com· price updated today
$59.99/mg
57% more per mg
vial · 1mgalphaomegapeptide.com· price updated today
$60.00/mg
57% more per mg
vial · 1mgpeptidecrafters.com· price updated 2d ago
$70.00−7%
$65.00$65.00/mg
60% more per mg
vial · 1mgsouthernaminos.com· price updated today
$99.00−25%
$74.25$74.25/mg
65% more per mg
vial · 1mgmyoasislabs.com· price updated today
$74.50/mg
66% more per mg
vial · 10mgatomiklabz.com· price updated today
$76.50/mg
66% more per mg
vial · 1mgnovapeptidesupply.com· price updated today
$79.99/mg
68% more per mg
vial · 1mgsolutionpeptides.net· price updated yesterday
$85.00/mg
70% more per mg
vial · 1mgpolarispeptides.com· price updated today
$85.00/mg
70% more per mg
vial · 1mgbulkpeptides.com· price updated today
$88.00/mg
71% more per mg
vial · 1mgnextechlaboratories.com· price updated today
$90.00/mg
71% more per mg
vial · 1mgyoursoma.com· price updated today
$93.00/mg
72% more per mg
vial · 1mgbiotechpeptides.com· price updated today
$145.00/mg
82% more per mg
vial · 1mgcorepeptides.com· price updated today
$150.00/mg
83% more per mg
vial · 1mggeneticpeptide.com· price updated today
$200.00/mg
87% more per mg
vial · 1.2mgpeptidology.co· price updated today
Lot 1665· tested 2025-10-03
$78.33/mg
67% more per mg
vial · 1mgverifiedpeptides.com· price updated today
Lot 09-25-0301C· tested 2025-08-20
$65.00/mg
60% more per mg
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. Every vendor on this page is verified for endotoxin testing — 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 June 2026. Actual prices may vary. For research use only.
Prices are estimates and may vary. For research use only. We may earn a commission on purchases through affiliate links. 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