# IGF-1 LR3 for Muscle Growth: Dosing, Cycles, and How to Stack It IGF-1 LR3 (Insulin-Like Growth Factor-1 Long R3) is a modified analog of native IGF-1 that holds a unique position in the peptide stack: it acts directly at the IGF-1 receptor with a much longer half-life (~2030 hours) than the natural version, which clears in under 15 minutes
A: Most weight loss products are not recommended for children, pregnant or breastfeeding women, or individuals with certain medical conditions without medical advice.
Reduced potency means you may not achieve expected appetite suppression, blood sugar control, or weight loss progress
Development 135 , 21612172 (2008)
Physical performance In one small study, men who received glutathione before a workout performed better and felt less fatigued after their exercise session (6)