Price Comparison
IGF-1 LR3
| Vendor | Price | 10mg cost | Updated | Actions |
|---|---|---|---|---|
| Qureshi Labs 7/10 COA ✓Ships: USCredit/debit card Verification & shipping7/10 COA ✓Ships: USCredit/debit card | $44.99 | $449.91Checked jul 25, 2026 | Jul 25, 2026 | Buy IGF-1 LR3 from Qureshi Labs |
| Alpha Peptides 8/10 COA ✓Ships: USCredit/debit card Verification & shipping8/10 COA ✓Ships: USCredit/debit card | $45.47 | $454.70Checked jul 31, 2026 | Jul 31, 2026 | Buy IGF-1 LR3 from Alpha Peptides |
| Amino Club 10/10 COA ✓Ships: US + internationalVisa · American Express Verification & shipping10/10 COA ✓Ships: US + internationalVisa · American Express | $45.49 | $454.94Checked aug 7, 2026 | Aug 7, 2026 | Buy IGF-1 LR3 from Amino Club |
| Evo Labs Research 8/10 COA ✓Ships: USCredit/debit card Verification & shipping8/10 COA ✓Ships: USCredit/debit card | $45.49 | $454.94Checked jun 22, 2026 | Jun 22, 2026 | Buy IGF-1 LR3 from Evo Labs Research |
| Lost Coast Aminos 9.5/10 COA ✓Ships: USCredit/debit card · Zelle Verification & shipping9.5/10 COA ✓Ships: USCredit/debit card · Zelle | $50.63 | $506.25Checked 6 days ago | 6 days ago | Buy IGF-1 LR3 from Lost Coast Aminos |
| Rivn Peptides 9/10 COA ✓Ships: USVisa · Mastercard Verification & shipping9/10 COA ✓Ships: USVisa · Mastercard | $50.99 | $509.92Checked aug 14, 2026 | Aug 14, 2026 | Buy IGF-1 LR3 from Rivn Peptides |
Research details
IGF-1 LR3 — research data
Overview
About IGF-1 LR3
Mechanism of action
Analogue of IGF-1 with arginine substitution at position 3 and N-terminal extension; binds IGF-1 receptors; promotes muscle cell hyperplasia and hypertrophy; inhibits apoptosis; enhances nutrient uptake.
Safety profile
Hypoglycemia (most significant risk), jaw/organ growth with high doses, insulin resistance, acromegaly risk, water retention, potential cancer promotion. · Documented animal DEATHS from prolonged (20–30h) hypoglycemia; severe acute hypoglycemia risk; cancer-proliferation concern (IGF-1 epidemiologically linked to several cancers); zero human trials; species-paradoxical responses. WADA-banned.
Storage
Stability & handling
Safety & Interactions
Contraindications & Drug Interactions
Research use only — not medical advice. Consult a licensed physician before using any peptide. Sources are cited where available.
Active malignancy — IGF-1 is a potent growth factor with documented tumor-promoting activity in preclinical models.
Severe hypoglycemia history or type 1 diabetes — IGF-1 causes significant hypoglycemia.
Hypersensitivity to IGF-1 or benzyl alcohol.
Related pages
More on IGF-1 LR3
Stack & Compare
Frequently Researched Together
Research
Studies & key findings
- Long R3 modification (Arg substitution at position 3 + 13-aa N-terminal extension) reduces IGF-binding protein (IGFBP) affinity by >95%, extending half-life from ~10 min to 20–30 hours.
- Demonstrated superior anabolic potency vs native IGF-1 in dexamethasone-treated catabolic rat models, supporting use in muscle-wasting and recovery contexts.