Unlike many smaller linear peptides, IGF-1 LR3 contains a much larger and more complex structure
The solutions were centrifuged and filtrated before subjecting to mass spectrometry (JMS-T100TD, JEOL Ltd) through electrospray ionisation
Nencini C, Giorgi G, Micheli L
The thighs (outer, middle third) and upper arms (back of the arm) are alternatives

References PMC Once-Weekly Semaglutide for Weight Management: A Clinical Review Comprehensive review of Semaglutides mechanism, efficacy, and safety in weight management (clinical data, half-life, GLP-1 receptor activation, weekly dosing) NCBI Bookshelf Semaglutide (StatPearls) Comprehensive pharmacology, clinical uses, dosing strategies, adverse effects, and contraindications for Semaglutide Mayo Clinic Semaglutide (Subcutaneous Route) Clinical guidance on Semaglutide administration, side effects, dosing, and patient information including weekly protocol PMC Semaglutide 2.4 mg for Weight Loss: Clinical Evidence Evidence-based review of Semaglutide 2.4 mg weekly maintenance dosing and clinical outcomes in obesity treatment PubMed Cardiovascular Outcomes with Semaglutide Long-term cardiovascular safety and benefits observed in Semaglutide clinical trials Journal of the Royal Society Interface (2017) Peer-reviewed review of formulation, temperature, agitation, lyophilization, and other factors that affect peptide stability

Precautions General Precautions: Vitamin B12 deficiency that is allowed to progress for longer than 3 months may produce permanent degenerative lesions of the spinal cord