The semax selank blend is a nootropic peptide combination designed for laboratory research. Semax is a synthetic analog of adrenocorticotropic hormone (ACTH 4-10), while selank is derived from tuftsin, a natural immunomodulatory peptide. Both have been investigated for their roles in modulating neurotransmitter systems, neuroprotection, and cognitive function in experimental models. By combining these two peptides, researchers aim to explore possible synergistic effects relevant to neurobiology and cognition.