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Improves cognitive function Some peptides like nootropics can enhance cognitive function, focus, and memory

A 1995 meta-analysis of 24 studies found no proof that HCG reduces hunger or fat loss more than diet alone [1]

The results often last up to 12 months

Schurks M, Rist PM, Kurth T

Summary Keywords endocrinology, growth hormone secretagogues, IGF-1 analogues, off-label use, peptide hormones, performance-enhancing drugs, sports doping Citation Dominikowski A, Rko Z, Olejarz M, Szczepanek-Parulska E, Domin R and Ruchaa M (2026) The emerging landscape of performance-enhancing peptides modulating GH-IGF1 axis: bridging the gap between clinical evidence and patient self-administration