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Compound Mechanism Muscle effect Key safety concern Status Soluble ActRIIB (ligand trap) Strong (+5.1% thigh volume) Vascular (BMP9/10) Discontinued 2013 ACE-083 Modified follistatin-Fc (local) Moderate (MRI increase) Lack of fun…
Perhaps the most surprising finding across the myostatin inhibitor field is that more muscle does not always mean better function. Both ACE-031 and ACE-083 produced measurable increases in muscle mass (by DXA and MRI), but neithe…
Researchers often want to know how ACE-031 compares to peptides with more established performance track records. The answer depends on what you are trying to achieve. For raw muscle mass gain, ACE-031 has the most impressive sing…
Putting ACE-031 side effects in context helps researchers assess relative risk. Compared to anabolic steroids, the side effect profile is fundamentally different. Steroids produce androgenic effects (acne, hair loss, virilization…