IGF-1 LR3 × Certified Peptides - Lab Test, December 2025
Test results
About this test
This independent HPLC-UV/VIS lab test confirms IGF-1 LR3 1mg from Certified Peptides at >99.80% purity with an actual assay of 1.04 mg. The analysis was performed by Vanguard Laboratory and reported on December 19, 2025, under Batch Number 251117IG13.
IGF-1 LR3 (Long R3 Insulin-like Growth Factor-1) is a modified analog of IGF-1 with an extended half-life, researched for its role in muscle growth, cell proliferation, and anabolic signaling. Additional testing confirmed endotoxin levels below 0.05 EU/mg (LAL method), sterility with no growth detected (USP <71>), and non-detectable levels of heavy metals including chromium, arsenic, cadmium, lead, and mercury via ICP-MS.
The full certificate of analysis is available for download on this page.
Certificate of analysis
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