Therapeutic Peptides in Aesthetic, Metabolic and Endocrine Conditions: Effects, Safety, Clinical Applications, and Future Perspectives IGF 1 LR3: Nasal Spray vs. Subcutaneous Injection Comparison Defect in Insulin Like Growth Factor 1 Survival Mechanism in Atherosclerotic PlaqueDerived Vascular Smooth Muscle Cells Is Mediated by Reduced Surface Binding and Signaling Circulation Research A Medical Review of IGF 1 LR3 Dosage, Side Effects and Safety Aspects