{"id":70699,"date":"2026-05-12T09:19:23","date_gmt":"2026-05-12T09:19:23","guid":{"rendered":"https:\/\/medsbase.com\/?post_type=product&p=70699"},"modified":"2026-05-21T07:14:10","modified_gmt":"2026-05-21T07:14:10","slug":"selank","status":"publish","type":"product","link":"https:\/\/medsbase.com\/el\/selank\/","title":{"rendered":"Selank"},"content":{"rendered":"

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Quick Answer \u2014 What is Selank?<\/h3>\n

Selank<\/strong> is a 7-amino-acid synthetic heptapeptide developed at the Russian Academy of Sciences as an analog of the endogenous immunomodulatory peptide tuftsin. In published research it acts as an anxiolytic nootropic, modulating GABAergic, serotonergic, and enkephalin signalling and upregulating BDNF expression without the sedation or dependence profile of benzodiazepines. Supplied in 5\u00a0mg and 10\u00a0mg lyophilized vials for laboratory research use only.<\/p>\n<\/div>\n

\u0391\u03c5\u03c4\u03cc \u03c0\u03bf\u03c5 \u03bb\u03b1\u03bc\u03b2\u03ac\u03bd\u03b5\u03c4\u03b5 \u03bc\u03b5 \u03c4\u03b7\u03bd MedsBase:<\/strong> \u0395\u03c1\u03b5\u03c5\u03bd\u03b7\u03c4\u03b9\u03ba\u03ac \u03bb\u03c5\u03bf\u03c6\u03b9\u03bb\u03b9\u03c9\u03bc\u03ad\u03bd\u03b1 \u03c0\u03b5\u03c0\u03c4\u03af\u03b4\u03b9\u03b1 \u00b7 HPLC \u03ba\u03b1\u03b8\u03b1\u03c1\u03cc\u03c4\u03b7\u03c4\u03b1 \u226599% (COA \u03ba\u03b1\u03c4\u03cc\u03c0\u03b9\u03bd \u03b1\u03b9\u03c4\u03ae\u03bc\u03b1\u03c4\u03bf\u03c2) \u00b7 \u0394\u03b9\u03b1\u03ba\u03c1\u03b9\u03c4\u03b9\u03ba\u03ae \u03c3\u03c5\u03c3\u03ba\u03b5\u03c5\u03b1\u03c3\u03af\u03b1 \u03c3\u03c4\u03b1\u03b8\u03b5\u03c1\u03ae \u03c3\u03b5 \u03b8\u03b5\u03c1\u03bc\u03bf\u03ba\u03c1\u03b1\u03c3\u03af\u03b1 \u00b7 \u03a0\u03b1\u03b3\u03ba\u03cc\u03c3\u03bc\u03b9\u03b1 \u03b1\u03c0\u03bf\u03c3\u03c4\u03bf\u03bb\u03ae \u03c0\u03b5\u03c0\u03c4\u03b9\u03b4\u03af\u03c9\u03bd \u00b7 1,400+ \u03b5\u03c0\u03b1\u03bb\u03b7\u03b8\u03b5\u03c5\u03bc\u03ad\u03bd\u03b1 \u03ba\u03c1\u03b9\u03c4\u03b9\u03ba\u03ad\u03c2 \u03c0\u03b5\u03bb\u03b1\u03c4\u03ce\u03bd<\/a><\/div>\n

\ud83d\udce6 \u039a\u03ac\u03b8\u03b5 \u03c0\u03b1\u03c1\u03b1\u03b3\u03b3\u03b5\u03bb\u03af\u03b1 \u03ba\u03b1\u03bb\u03cd\u03c0\u03c4\u03b5\u03c4\u03b1\u03b9 \u03b1\u03c0\u03cc \u03c4\u03b7\u03bd \u03a0\u03bf\u03bb\u03b9\u03c4\u03b9\u03ba\u03ae \u0395\u03b3\u03b3\u03cd\u03b7\u03c3\u03b7\u03c2 \u0395\u03c0\u03b1\u03bd\u03b1\u03c0\u03bf\u03c3\u03c4\u03bf\u03bb\u03ae\u03c2<\/strong><\/a> \u2014 \u03b5\u03ac\u03bd \u03c4\u03bf \u03b4\u03ad\u03bc\u03b1 \u03c3\u03b1\u03c2 \u03b4\u03b5\u03bd \u03c6\u03c4\u03ac\u03c3\u03b5\u03b9 \u03b5\u03bd\u03c4\u03cc\u03c2 20 \u03b5\u03c1\u03b3\u03ac\u03c3\u03b9\u03bc\u03c9\u03bd \u03b7\u03bc\u03b5\u03c1\u03ce\u03bd, \u03c4\u03bf \u03b5\u03c0\u03b1\u03bd\u03b1\u03c0\u03bf\u03c3\u03c4\u03ad\u03bb\u03bb\u03bf\u03c5\u03bc\u03b5.<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u03a0\u03c1\u03bf\u03b4\u03b9\u03b1\u03b3\u03c1\u03b1\u03c6\u03ae<\/th>\n\u039b\u03b5\u03c0\u03c4\u03bf\u03bc\u03ad\u03c1\u03b5\u03b9\u03b1<\/th>\n<\/tr>\n<\/thead>\n
\u0391\u03c1\u03b9\u03b8\u03bc\u03cc\u03c2 CAS<\/strong><\/td>\n129954-34-3<\/td>\n<\/tr>\n
\u039c\u03bf\u03c1\u03b9\u03b1\u03ba\u03cc\u03c2 \u03a4\u03cd\u03c0\u03bf\u03c2<\/strong><\/td>\nC33<\/sub>H57<\/sub>N11<\/sub>O9<\/sub><\/td>\n<\/tr>\n
\u039c\u03bf\u03c1\u03b9\u03b1\u03ba\u03cc \u0392\u03ac\u03c1\u03bf\u03c2<\/strong><\/td>\n751.88 Da<\/td>\n<\/tr>\n
\u0391\u03ba\u03bf\u03bb\u03bf\u03c5\u03b8\u03af\u03b1<\/strong><\/td>\nThr-Lys-Pro-Arg-Pro-Gly-Pro-NH2<\/sub> (TKPRPGP-NH2<\/sub>, 7 amino acids; C-terminally amidated tuftsin analog)<\/td>\n<\/tr>\n
\u039c\u03bf\u03c1\u03c6\u03ae<\/strong><\/td>\nLyophilized powder (white to off-white)<\/td>\n<\/tr>\n
\u039a\u03b1\u03b8\u03b1\u03c1\u03cc\u03c4\u03b7\u03c4\u03b1<\/strong><\/td>\n\u226599% (HPLC \u03b5\u03c0\u03b1\u03bb\u03b7\u03b8\u03b5\u03c5\u03bc\u03ad\u03bd\u03bf, COA \u03ba\u03b1\u03c4\u03cc\u03c0\u03b9\u03bd \u03b1\u03b9\u03c4\u03ae\u03bc\u03b1\u03c4\u03bf\u03c2)<\/td>\n<\/tr>\n
\u0391\u03c0\u03bf\u03b8\u03ae\u03ba\u03b5\u03c5\u03c3\u03b7<\/strong><\/td>\n\u039b\u03c5\u03bf\u03c6\u03b9\u03bb\u03b9\u03c9\u03bc\u03ad\u03bd\u03bf: 2\u20138 \u00b0C (\u03c8\u03c5\u03b3\u03b5\u03af\u03bf) \u03b3\u03b9\u03b1 \u03b5\u03c1\u03b3\u03b1\u03c3\u03c4\u03b9\u03ba\u03cc \u03b1\u03c0\u03cc\u03b8\u03b5\u03bc\u03b1\u00b7 \u221220 \u00b0C \u03b3\u03b9\u03b1 \u03bc\u03b1\u03ba\u03c1\u03bf\u03c0\u03c1\u03cc\u03b8\u03b5\u03c3\u03bc\u03b7 \u03b1\u03c0\u03bf\u03b8\u03ae\u03ba\u03b5\u03c5\u03c3\u03b7 \u03b1\u03bd\u03bf\u03b9\u03c7\u03c4\u03ce\u03bd \u03c6\u03b9\u03b1\u03bb\u03ce\u03bd. \u0391\u03bd\u03b1\u03c3\u03c5\u03bd\u03c4\u03b5\u03b8\u03b5\u03b9\u03bc\u03ad\u03bd\u03bf: 2\u20138 \u00b0C, \u03c7\u03c1\u03ae\u03c3\u03b7 \u03b5\u03bd\u03c4\u03cc\u03c2 ~30 \u03b7\u03bc\u03b5\u03c1\u03ce\u03bd. \u03a0\u03c1\u03bf\u03c3\u03c4\u03b1\u03c3\u03af\u03b1 \u03b1\u03c0\u03cc \u03c4\u03bf \u03c6\u03c9\u03c2. \u039c\u03b7\u03bd \u03ba\u03b1\u03c4\u03b1\u03c8\u03cd\u03c7\u03b5\u03c4\u03b5-\u03b1\u03c0\u03bf\u03c8\u03cd\u03c7\u03b5\u03c4\u03b5 \u03c4\u03bf \u03b1\u03bd\u03b1\u03c3\u03c5\u03bd\u03c4\u03b5\u03b8\u03b5\u03b9\u03bc\u03ad\u03bd\u03bf \u03b4\u03b9\u03ac\u03bb\u03c5\u03bc\u03b1.<\/td>\n<\/tr>\n
\u0394\u03b9\u03b1\u03bb\u03c5\u03c4\u03cc\u03c4\u03b7\u03c4\u03b1<\/strong><\/td>\nBacteriostatic water (recommended) or sterile water for shorter use windows. Compatible with intranasal vehicle research formulations.<\/td>\n<\/tr>\n
\u0395\u03c1\u03b5\u03c5\u03bd\u03b7\u03c4\u03b9\u03ba\u03ae \u03a7\u03c1\u03ae\u03c3\u03b7<\/strong><\/td>\n\u039c\u03cc\u03bd\u03bf \u03b3\u03b9\u03b1 \u03b5\u03c1\u03b3\u03b1\u03c3\u03c4\u03b7\u03c1\u03b9\u03b1\u03ba\u03ae \u03ad\u03c1\u03b5\u03c5\u03bd\u03b1. \u0394\u03b5\u03bd \u03c0\u03c1\u03bf\u03bf\u03c1\u03af\u03b6\u03b5\u03c4\u03b1\u03b9 \u03b3\u03b9\u03b1 \u03b4\u03b9\u03b1\u03b3\u03bd\u03c9\u03c3\u03c4\u03b9\u03ba\u03ae \u03ae \u03b8\u03b5\u03c1\u03b1\u03c0\u03b5\u03c5\u03c4\u03b9\u03ba\u03ae \u03c7\u03c1\u03ae\u03c3\u03b7 \u03c3\u03b5 \u03b1\u03bd\u03b8\u03c1\u03ce\u03c0\u03bf\u03c5\u03c2 \u03ae \u03b6\u03ce\u03b1.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

<\/p>\n

What Is Selank?<\/h2>\n

Selank<\/strong> is a synthetic heptapeptide developed in the 1990s at the Institute of Molecular Genetics of the Russian Academy of Sciences, the same laboratory that developed Semax<\/a>. It is structurally an analog of the endogenous immunomodulatory tetrapeptide tuftsin (TKPR), extended at the C-terminus with a Pro-Gly-Pro tail that confers proteolytic stability and an amidated C-terminus. The tail extension dramatically extends plasma half-life relative to native tuftsin, which is degraded within minutes, while preserving the immunomodulatory activity of the parent peptide.<\/p>\n

Selank’s well-characterised sequence is TKPRPGP-NH2<\/sub>, molecular weight 751.88\u00a0Da, empirical formula C33<\/sub>H57<\/sub>N11<\/sub>O9<\/sub>. It is supplied as a high-purity lyophilized powder for reconstitution with bacteriostatic water. In Russia, Selank is approved as a prescription anxiolytic under the name Selank (intranasal spray); outside the post-Soviet bloc it is not approved by the FDA, EMA, MHRA, or any other major regulator. The research-grade Selank sold here is supplied for laboratory research use only<\/strong> and is not approved for human or veterinary administration. For sister-peptide research, see our Semax<\/a> product page.<\/p>\n

Mechanism of Action \u2014 GABAergic, Serotonergic, and BDNF Pathways<\/h2>\n

What makes Selank distinctive among anxiolytic research compounds is its multi-pathway neuromodulatory profile<\/strong> without direct receptor binding to the GABAA<\/sub> benzodiazepine site \u2014 each contributing to the observed anxiolytic and nootropic phenotype in published research:<\/p>\n