MOTS-c serum concentration positively correlates with lower-body muscle strength and is not related to maximal oxygen uptake a preliminary study

enthusiasm dramatically outpaces science FDA Category 2 classifications for peptides like Semax reflect absence of FDA-standard evidence, not documented harmsRussian clinical experience suggests reasonable safety, but long-term effects by Western standards remain uncharacterized Established interventionsexercise, Mediterranean diet, sleep optimization, cardiovascular risk management, cognitive engagementhave far more consistent evidence than any peptide for dementia risk reduction For Research Prioritization Compounds meriting continued investigation: GLP-1 Agonists: Prevention trials in preclinical/presymptomatic populations, testing compounds with better brain penetration (dulaglutide, lixisenatide) SS-31/Elamipretide: Cognitive outcomes in mitochondrial disease populations, potential expansion to brain aging indications P21: Phase I human trials to establish safety, pharmacokinetics, and proof-of-mechanism for CNTF-pathway neurogenesis Klotho: Watch for Phase 1 results from Jocasta Neuroscience (expected 2027-2028)

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Mice were euthanized at 0.5, 3, 7, 10, and 24 h post injection
No Human Pharmacokinetic Programme FDA found no pharmacokinetic data defining absorption, distribution, metabolism, half-life, clearance or tissue exposure for Epitalon free base or Epitalon acetate