Top 7 Nootropic & Cognitive Peptides

Selank is a synthetic peptide developed at the Institute of Molecular Genetics of the Russian Academy of Sciences. It is based on the naturally occurring immunomodulatory peptide tuftsin (Thr-Lys-Pro-Arg), with an added Pro-Gly-Pro sequence that enhances stability against enzymatic degradation. Selank has been the subject of extensive preclinical research as both a nootropic and immunomodulatory compound.

Semax is a synthetic heptapeptide derived from the N-terminal fragment of adrenocorticotropic hormone (ACTH 4-10), developed at the Institute of Molecular Genetics of the Russian Academy of Sciences. Like Selank, it incorporates a Pro-Gly-Pro C-terminal modification for enhanced stability. Semax has been extensively studied in Russian preclinical and clinical research as a neuroprotective and nootropic compound.

Delta Sleep-Inducing Peptide (DSIP) is a naturally occurring nonapeptide first isolated from the cerebral venous blood of rabbits during induced sleep by Swiss researchers Schoenenberger and Monnier in 1977. DSIP has been the subject of research into sleep architecture, circadian rhythm regulation, and neuroendocrine function for nearly five decades.

PT-141 (Bremelanotide) is a synthetic cyclic heptapeptide analog of alpha-melanocyte-stimulating hormone (alpha-MSH). It was originally developed from the tanning peptide Melanotan II and acts as a melanocortin receptor agonist, primarily targeting MC3R and MC4R receptors in the central nervous system. PT-141 is notable as one of the few peptides that acts through central nervous system pathways rather than peripheral vascular mechanisms.

BPC-157 (Body Protection Compound-157) is a synthetic peptide consisting of 15 amino acids. It is derived from a partial sequence of a protective protein found in human gastric juice. BPC-157 has become one of the most extensively studied peptides in preclinical research, with over 100 published studies examining its effects in various animal models.

Epitalon (also spelled Epithalon) is a synthetic tetrapeptide based on the naturally occurring peptide epithalamin, which is produced by the pineal gland. Developed by Professor Vladimir Khavinson at the Saint Petersburg Institute of Bioregulation and Gerontology, Epitalon has been the subject of extensive research into telomerase activation, telomere biology, and age-related biomarkers in preclinical models.

GHK-Cu (copper peptide) is a naturally occurring tripeptide with a strong affinity for copper(II) ions. First identified in human plasma by Dr. Loren Pickart in 1973, GHK-Cu concentration declines with age. It has become one of the most studied peptides in dermatological and aging research, with applications spanning skin biology, wound healing, and gene expression modulation.