Manufactured under cGMP (current Good Manufacturing Practice) conditions and meeting United States Pharmacopoeia (USP) monograph standards, this product carries FDA approval and is classified as prescription-only for licensed healthcare professionals
The clinical program and Phase 2b failure Phase 1 and 2a trials were successful , the peptide was safe, without significant side effects, and showed a mild lipolytic signal
Vitastir customer service is fantastic and very responsive
Muscle injury : Studies of muscle crush injuries demonstrated accelerated muscle fiber regeneration and repair of myotendinous junctions (where muscle meets tendon) within one to two weeks, with less scar tissue formation
The peptide has since demonstrated remarkable healing properties across multiple organ systems and tissue types
Olasupo Odunsi, MD, Medical Director Reviewed July 5, 2026 If you're constantly tired and your metabolism feels stuck, low B12 could be part of the problem