Muscle Growth
Best peptides for muscle growth.
Muscle growth peptides typically stimulate the body's natural production of growth hormone or directly support tissue repair. They are commonly studied for their effects on lean mass, recovery, and body composition.
6 peptides in this category
A GHRH analog designed for long-acting stimulation of natural growth hormone production.
A long-acting modified analog of insulin-like growth factor 1 with extended half-life and reduced binding-protein affinity.
A myostatin-binding protein studied for its potential to drive significant muscle hypertrophy by removing the body's natural growth ceiling.
A pegylated form of mechano growth factor (MGF), a splice variant of IGF-1 that activates muscle satellite cells in response to mechanical loading.
A naturally occurring truncated form of IGF-1 with shorter, faster action than IGF-1 LR3 — used for site-specific muscle effects.
A soluble decoy receptor that binds and neutralizes myostatin, increasing muscle mass — studied for muscular dystrophy before trials were paused.
What to know about muscle growth peptides
Muscle growth peptides typically stimulate the body's natural production of growth hormone or directly support tissue repair. They are commonly studied for their effects on lean mass, recovery, and body composition. Each peptide in this category is profiled individually with its mechanism of action, typical dosing information, and known side-effect profile. Click any peptide to explore the full breakdown.
For research planning, pair this directory with our Dosage Calculator and Reconstitution Calculator.