Overview: IGF-1 LR3 is an 83-amino-acid analog of insulin-like growth factor 1 with reduced binding-protein affinity, making it a common tool in cell-culture growth media research. It is intended strictly for in vitro and laboratory research applications. Contents: A single 1mg lyophilized vial of IGF-1 LR3 (Long R3 IGF-1) supplied as sterile lyophilized powder. Purity: >98% (batch-specific COA reports 98.691% purity via HPLC analysis). Quality Assurance: • Independent third-party testing on every batch • HPLC purity verification and mass-spectrometry identity confirmation • Manufactured under