Follistatin (Primarily Follistatin 344)
Typical Dosing Protocols (Research/Compounded Use Only) – Follistatin (Primarily Follistatin 344)
Common protocol: 100–300 mcg subcutaneously once daily for 10–30 consecutive days. Most users start at 100 mcg daily and titrate up to 200–300 mcg based on response.
Other reported ranges:
Standard: 100–200 mcg daily
Higher: 200–300 mcg daily (or split bilaterally into target muscles)
Cycle length: 10–30 days on, followed by a 3–4 week break to maintain sensitivity.
Reconstitution example (for a typical 1 mg vial): Add 2 mL bacteriostatic water (yielding ~500 mcg/mL).
100 mcg = 0.2 mL (20 units on U-100 insulin syringe)
200 mcg = 0.4 mL (40 units)
Administration: Subcutaneous injection (abdomen or thigh). Some users inject locally into target muscle groups.
Dosing is highly individualized based on goals (muscle growth, recovery) and response—consult a qualified healthcare provider experienced with peptides for personalized guidance. This is for informational purposes only.
ey Potential Benefits of Follistatin (Primarily Follistatin 344)
Powerful Myostatin Inhibition and Muscle Hypertrophy
Binds to and neutralizes myostatin (a TGF-β family member), removing the natural brake on muscle growth and allowing for significant increases in both muscle fiber size (hypertrophy) and number (hyperplasia).
Promotes rapid skeletal muscle development far beyond typical genetic limits in research models, leading to dramatic gains in lean muscle mass and overall muscle volume.
Enhances satellite cell proliferation and activation, supporting new muscle fiber formation and greater muscle density.
Increased Muscle Strength and Performance
Boosts functional muscle strength and power output through expanded muscle tissue and improved contractile capacity.
Supports enhanced workout capacity, endurance, and physical resilience, making it valuable for athletes and those seeking performance optimization.
Contributes to better neuromuscular function and coordination in aging or muscle-wasting models.
Accelerated Recovery and Muscle Regeneration
Speeds up repair processes after training, injury, or muscle damage by modulating inflammation and promoting tissue remodeling.
Aids in reducing fibrosis/scarring and improving muscle quality during recovery from stress or atrophy.
Supports overall regenerative capacity in skeletal muscle, helping maintain gains during demanding training periods.
Improved Body Composition and Fat Reduction
Favors lean tissue development while promoting favorable shifts in fat metabolism and reduced visceral/abdominal fat accumulation.
Enhances nutrient partitioning toward muscle building rather than storage, supporting a leaner, more defined physique.
Contributes to better metabolic health markers, including glucose handling and lipid profiles in preclinical contexts.
Support for Anti-Aging and Longevity
Counters age-related muscle loss (sarcopenia) and helps restore youthful muscle mass, strength, and function.
May promote broader regenerative effects on tissues and has been linked to improvements in epigenetic age markers in some studies.
Enhances physiological resilience and vitality by optimizing muscle as a key metabolic organ.
Broader Regenerative and Tissue Support
Exhibits potential benefits for connective tissue health, bone support, and overall musculoskeletal integrity through growth factor modulation.
Influences activin signaling to reduce excessive inflammation and support cellular homeostasis.
Contributes to systemic effects on energy levels, physical performance, and recovery in research models of muscle degeneration or aging.
){kind=link}