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It is primarily marketed and sold for research purposes only, and its regulatory status indicates that it is not regulated by the FDA or similar bodies for human use

Rackow, T

It is a key distinction from growth hormone secretagogues or GHRH analogues that require functional pituitaries to work

Injection site reactions common to peptide administration routes Transient water retention reported in some GH-axis research models Headache and mild fatigue documented in GHRH/GHRP combination studies Effects generally resolve with dose adjustment in published protocols Handling Reconstituting HGH Fragment 176-191 HGH Fragment 176-191 is supplied as a lyophilised powder and must be reconstituted before use in laboratory protocols

(PubMed) Michels AJ, Hagen TM, Frei B

This causes the water in the peptide vial to sublimate directly from solid to gas vapor, leaving behind a stable, crystalline white structure becoming lyophilized