RESEARCHES STUDY : -HOW SEMAX WORK AS Peptide derivative related to ACTH fragment biology WHICH influence BDNF expression, catecholaminergic signaling, and cerebral adaptive responses. AND - HOW SELANK ( Synthetic peptide analogue ) associated with anxiolytic and neuromodulatory effects, potentially involving GABAergic balance, monoamine modulation, and neuroimmune signaling. FOR RESEARCH USE ONLY .