Pay in 4 interest-free payments of $7.16 Learn more
Ships within 48 hours · Estimated delivery Oct 8 - Oct 13
Example progression: Baseline: 3 sets x 12 exercises = 36 total sets per session On IGF-1 LR3: 4 sets x 12 exercises = 48 total sets (33% increase) OR add 1-2 extra training sessions per week Prioritize compound movements: Squats, deadlifts, bench press, rows, overhead press These recruit maximum muscle fibers IGF-1 preferentially supports most-stimulated muscle tissue Shorten rest periods: Normal: 2-3 minutes between heavy sets On IGF-1 LR3: 60-90 seconds (enhanced recovery) Creates greater metabolic stress additional growth stimulus Nutrition Optimization Protein: 1.2-1.5g per pound of body weight IGF-1 LR3 increases muscle protein synthesis rates by 30-50%
But you don't have to just endure them
Appears to enhance weightloss and glucose effects when combined with GLP1, based on dualagonist data (such as tirzepatide). Glucagon receptor activation Increases energy expenditure and promotes fat oxidation when balanced properly with GLP1 and GIP. May help reduce liver fat and visceral (deep abdominal) fat, which are strongly linked to cardiometabolic risk. By combining these three pathways, retatrutide aims to reduce appetite, improve metabolic control, and increase calorie burning more strongly than current single or dualagonist drugs
They also support cellular energy production by helping the body convert food into energy
The necessity of ME1 with respect to GSIS is still debated
