Muscle & Performance Research
A research overview of peptides targeting muscle hypertrophy, satellite cell activation, injury recovery, and mitochondrial performance — from IGF-1 isoforms to AMPK-driven biogenesis.
Research context only. All compounds listed are for laboratory research purposes. This content does not constitute medical advice, diagnosis, or treatment recommendations.
For laboratory research only
All Research Systems →Muscle Research Context
Satellite Cell Activation & Hypertrophy
Muscle satellite cells are the primary progenitors for muscle repair and hypertrophy. IGF-1 isoforms, particularly MGF (mechano growth factor), activate satellite cells in response to mechanical load, driving muscle protein synthesis.
GH/IGF-1 Axis in Muscle
Growth hormone stimulates IGF-1 production in the liver and locally in muscle tissue. IGF-1 activates the PI3K/Akt/mTOR pathway, the central anabolic signaling cascade for muscle protein synthesis and hypertrophy.
Inflammation & Muscle Recovery
Acute inflammation after exercise is necessary for adaptation, but chronic or excessive inflammation impairs recovery. Anti-inflammatory peptides that reduce NF-κB activation support faster recovery without blunting adaptive signaling.
Mitochondrial Biogenesis & Endurance
AMPK activation drives mitochondrial biogenesis via PGC-1α, increasing oxidative capacity and endurance. MOTS-c and AMPK-activating peptides improve skeletal muscle energy metabolism and fatigue resistance.
Peptides Targeting Muscle & Performance
Muscle Research Pathways
IGF-1 / mTOR Hypertrophy Axis
IGF-1 activates PI3K/Akt/mTOR, the central anabolic signaling cascade for muscle protein synthesis. IGF-1 LR3 and PEG-MGF provide sustained IGF-1 receptor activation, driving satellite cell activation and hypertrophy.
Muscle Repair & Anti-Inflammation
Muscle injury triggers inflammation that must resolve for repair. BPC-157 and TB-500 accelerate repair via angiogenesis, satellite cell mobilization, and NF-κB inhibition, reducing recovery time.
GH/IGF-1 Axis (Secretagogues)
GH secretagogues stimulate pulsatile GH release, which drives hepatic and local IGF-1 production. This supports muscle protein synthesis, lipolysis, and body composition without exogenous GH administration.
Mitochondrial Biogenesis & Endurance
AMPK activation via MOTS-c drives PGC-1α-mediated mitochondrial biogenesis, increasing skeletal muscle oxidative capacity, fatigue resistance, and endurance performance.
Key Studies in Muscle Research
BPC-157 Muscle and Tendon Repair
BPC-157 accelerated healing of muscle tears and tendon injuries in multiple rodent models via VEGFR2 upregulation, angiogenesis, and NF-κB inhibition, with faster functional recovery.
IGF-1 Isoforms and Satellite Cell Activation
Mechano growth factor (MGF), a local IGF-1 isoform, activates satellite cells in response to mechanical load, driving muscle hypertrophy and repair via PI3K/Akt/mTOR signaling.
MOTS-c Regulates Skeletal Muscle Metabolism
MOTS-c activated AMPK in skeletal muscle, driving mitochondrial biogenesis via PGC-1α and improving oxidative capacity, endurance, and insulin sensitivity in metabolic disease models.
Thymosin β4 in Muscle Repair
TB-500 (thymosin β4) promoted satellite cell activation, reduced inflammation, and supported actin polymerization for muscle cell migration, accelerating recovery from muscle injury.
Explore These Compounds
Browse the full catalog of research peptides available from SwissNova Labs.