Insulin-like Growth Factor-1 Long Arg3

Cycle: 4-6 Weeks on/4 Weeks off

Timing: Post-Workout

Frequency: daily - post-workout

Uses

Muscle Hyperplasia: Unlike regular growth factors, it can promote hyperplasia—the creation of completely new muscle cells rather than just enlarging existing ones.

Accelerated Recovery: It is used off-label to significantly reduce recovery times after intense physical training or injury by boosting protein synthesis and satellite cell activation.
Metabolic Efficiency: It helps redistribute energy, driving glucose and nutrients directly into muscles while enhancing the body's ability to reduce fat storage.
Extended Bioactivity: The "LR3" modification prevents the peptide from binding to proteins in the body that normally deactivate it, giving it an active half-life of roughly 20 to 30 hours

Complementary products: Wolverine, BPC 157 or GHK-Cu

Benefits

Increased lean muscle mass
Enhanced recovery from training and injury
Fat metabolism support
Potential support for tissue and joint repair
Sustained activity compared to native IGF-1

Contraindications

Cancer

Active cancer of any kind (absolute stop, IGF-1 signaling directly drives cell growth)
Any cancer history, including remission (absolute stop territory, clinician may decline entirely)
Strong family history of cancer (flag for clinician review)

Blood sugar and metabolic

Diabetes, type 1 or type 2 (significant hypoglycemia risk)
Hypoglycemia history or blood sugar instability
Currently taking insulin or blood sugar lowering medications

Cardiovascular

Cardiac hypertrophy or structural heart disease
Uncontrolled high blood pressure (flag for clinician review)

Pregnancy and fertility

Currently pregnant
Breastfeeding

Other

Diabetic retinopathy (IGF-1 can worsen it)
Severe kidney or liver disease
Athletes subject to drug testing (WADA-banned substance)
Prior allergic reaction to IGF-1 products

Spring Training MD · Physician-guided, LegitScript-certified telemedicine

IGF-1 LR3

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