The anti-anxiety peptide that doesn't sedate you, doesn't numb you, and doesn't hook you.
Selank was developed alongside Semax by the Russian Academy of Sciences. It enhances GABA-A sensitivity and serotonin turnover in your limbic system — the same pathways targeted by benzodiazepines — but without the sedation, the memory fog, the tolerance buildup, or the withdrawal. Four-week clinical studies found zero dependency markers. Unlike Xanax, it also increases BDNF. Unlike SSRIs, it doesn't take 4-6 weeks to kick in. Twenty years of clinical use in Russia. Intranasal spray. Calm with clarity. Not drugged compliance.
Selank
Selank (Thr-Lys-Pro-Arg-Pro-Gly-Pro)
Selank is a synthetic analogue of the endogenous immunomodulatory peptide tuftsin, developed by the Russian Academy of Sciences. It is approved in Russia for anxiety and asthenic disorders. Unlike benzodiazepines, it provides anxiolytic effects via GABA-A and serotonin modulation without sedation, dependency, or cognitive blunting.
Technical details
- CAS number
- 129954-34-3
- Molecular formula
- C33H57N11O9
MECHANISM OF ACTION
Selank enhances GABA-A receptor sensitivity and modulates serotonin (5-HT) turnover in the limbic system — the primary mechanism behind its anxiolytic effect. It also increases BDNF in the hippocampus and prefrontal cortex, normalises IL-6 and other inflammatory cytokines, and stabilises enkephalin degradation, prolonging natural opioid signalling without addiction risk. The net effect is calm alertness, not sedation.
RESEARCH HIGHLIGHTS
Anxiolytic effect equivalent to benzodiazepines in rodent models with no sedation, ataxia, or memory impairment
Normalises IL-6 and other pro-inflammatory cytokines — distinct immunomodulatory mechanism from other anxiolytics
Improves working memory and attention in anxious subjects — cognition-enhancing effect on top of anxiolytic base
No withdrawal syndrome observed after 4-week course; no physical or psychological dependency markers
RESEARCH PROTOCOLS
For laboratory use only. Not medical advice.
Intranasal delivery. Effects felt within 15–30 minutes. Start in the morning or before a high-stress event. Many researchers report no adjustment period required.
Russian clinical standard. Pairs with Semax for balanced stress-and-focus protocol — Selank anchors the anxiolytic base, Semax amplifies executive function.
Used in clinical studies for generalised anxiety disorder. Monitor mood daily — reduce dose if emotional blunting observed.
PAIRS WELL WITH
ORDER
SAFETY & CONTRAINDICATIONS
- Concurrent benzodiazepine use (potential additive GABA-A effect)
- Pregnancy or breastfeeding
- Severe hepatic or renal impairment
- Known hypersensitivity to tuftsin or related peptides
Excellent tolerability profile. Reported effects: mild nasal irritation (intranasal), transient drowsiness in first 2–3 days (resolves), appetite increase in some subjects. No cognitive impairment, no dependency, no withdrawal.
For research and laboratory use only. Not intended for human consumption. Not for diagnostic or therapeutic purposes.