Nootropic · 5mg × 10 vials
In plain terms: Selank is a research compound - oral, fast-acting and well studied.
Selank is a synthetic heptapeptide (Thr-Lys-Pro-Arg-Pro-Gly-Pro) developed at the Russian Academy of Medical Sciences in the late 1980s as a stable analog of tuftsin, an endogenous immunomodulatory tetrapeptide produced from cleaved IgG. The Pro-Gly-Pro tail on the back end blocks enzymatic degradation so Selank actually crosses the blood-brain barrier and lingers long enough to do CNS work, where natural tuftsin is broken down before it gets there. Once central, the anxiolytic effect runs through GABAergic modulation (Selank upregulates GABA-A receptor expression and amplifies inhibitory tone without binding the benzodiazepine site, which is why it produces calm without sedation, tolerance, or dependence), plus a serotonergic arm (increases brain serotonin metabolism via 5-HIAA) and BDNF upregulation in the hippocampus (the mood/neuroplasticity layer that overlaps with how SSRIs work mechanistically downstream). It also retains the immunomodulatory parent activity of tuftsin, with published effects on interferon production and cytokine balance. The practical signature is: anxiety drops, baseline mood stabilizes, focus stays intact, no drowsiness, no withdrawal on stopping, no euphoria, no abuse potential. That mechanism profile is why Russian clinicians have positioned it as a benzodiazepine alternative for generalized anxiety since the late 1990s.
Typical dose ranges by experience level - educational reference. Message us and we tailor it to you.
At 5 mg/ml (10 mg vial in 2 ml BAC), 250 mcg = 0.05 ml = 5 IU on a U-100 syringe, or ~1 metered nasal spray. Effect is felt within 20-60 min on the first dose for acute anxiety, full mood/baseline shift takes 7-14 days. No sedation, so morning dosing does not interfere with work. Russian clinical protocol in the original anxiety trials used 300-900 mcg/day intranasal across the day, our beginner band sits at the conservative end.
This is the band most published Russian trials (Zozulia, Medvedev, et al.) ran for generalized anxiety disorder. Twice-daily intranasal dosing matches the short serum half-life and gives more even coverage than a single morning dose. Sleep is generally improved as a side effect of lowered evening anxiety, not via direct sedation. SubQ equivalent is 200-300 mcg/day split, slightly lower because bioavailability is higher.
Above ~1 mg/day there is no documented additional benefit, the dose-response plateaus. Advanced use is more about stack design and timing (paired Semax for cognitive layer, paired DSIP for sleep+anxiety, paired PE 22-28 for additional mood support) than dose escalation. N-Acetyl Selank Amidate (NSK) is the longer-half-life prodrug variant, dosed less frequently at similar mcg amounts.
Straight talk - what people actually report, and what the studies measured.
Peer-reviewed studies and clinical guidelines - tap any to read the source.
original Russian clinical anxiety trial
Read study ↗PubMedMedvedev et al, Comparative analysis of Selank and medazepam in anxiety disorder, Zh Nevrol Psikhiatr Im S S Korsakova 2007head-to-head against benzodiazepine medazepam, comparable efficacy without sedation or cognitive impairment
Read study ↗PubMedKost et al, Peptide selank as an analog of tuftsin and its effects on GABAergic system, Bull Exp Biol Med 2001mechanism, GABA-A receptor expression
Read study ↗PubMedVolkova et al, Selank administration affects the expression of some genes involved in GABAergic neurotransmission, Front Pharmacol 2016gene expression and GABAergic neurotransmission
Read study ↗PubMedInozemtseva et al, Effect of Selank on cognitive processes, Bull Exp Biol Med 2008cognitive effects in healthy volunteers
Read study ↗PubMedKolomin et al, Transcriptomic responses to Selank in rat hippocampus, Genom Data 2014BDNF and neuroplasticity gene expression
Read study ↗Aggregated sentiment from public forums & socials - real-world reports, not individual endorsements.
Most users report "feels like nothing dramatic" on first dose, which is the actual signature, anxiety softens but no buzz, no high, no clouded thinking. r/Nootropics consensus is "you don't notice it working until you notice you're not anxious".
Mild headache on first 1-2 doses: occasional, usually resolves
Nasal dryness or mild congestion on high-frequency intranasal use: addressable with saline rinse, dose reduction, or rotation to SubQ
Mood lift / lowered baseline reactivity: described as feeling "leveled out" rather than "high", reported reliably after 7-14 days continuous use
Improved sleep as a secondary effect of lowered daytime anxiety, not from sedation
No reports of withdrawal, rebound anxiety, or discontinuation syndrome on stopping cold
Route: intranasal (standard, both in Russian clinical practice and in community use), SubQ as a secondary route
Storage: refrigerated, stable ~30 days reconstituted. Lyophilized vials room-temp short-term, refrigerate for long storage.
Notes: Intranasal is the canonical route, Russian clinical trial protocols are intranasal almost exclusively. SubQ is fine but the dose is typically lower because bioavailability is higher than nasal. Selank has no taste or burn intranasally. Do not blow nose for 10-15 min after dosing. If using a dedicated nasal sprayer, expect ~0.1 ml per spray on most metered bottles, so a 250 mcg dose at 5 mg/ml is ~1 spray total split between nostrils.