A synthetic heptapeptide derived from tuftsin. Research has examined its modulatory effects on GABA-A receptor activity and anxiolytic signalling pathways in neuronal cell models.
Add sterile bacteriostatic water to the vial to achieve your target working concentration.
Storage conditions: -20°C, dry
Form: Lyophilised
Solubility: Water
Current batch: SK10-260514-174
HPLC purity: 99.63%
MS verified: Yes
Expiry: May 2028
The certificate of analysis for this batch is issued with your order.
C₃₃H₅₇N₁₁O₉ · 751.9 Da
Selank
out of stock
Free shipping on orders over £75
Adults 18+ only. For laboratory research only. Not for use on humans or animals.
Working out volumes? Peptide calculator · Reconstitution guide
SK10-260514-174 · HPLC 99.63%
The batch code matches the vial you will receive. Full analysis — purity, mass spectrometry, residual solvents and microbial limits — is issued with your order.
| Content | 5mg |
| Purity | 99.63% HPLC |
| Form | Lyophilised |
| Storage | -20°C, dry |
| Sequence | Thr-Lys-Pro-Arg-Pro-Gly-Pro |
| Solubility | Water |
Same-day dispatch — order within
Same-day dispatch before 3pm, Mon–Fri. Next dispatch .
via Royal Mail Tracked 24
Selank
5mg · £19.99
Selank is a synthetic analogue of tuftsin, a naturally occurring immunomodulatory tetrapeptide. Sequence TKPRPGP. Like Semax it was developed in Russia and the bulk of its literature comes from there.
Published rodent work has examined effects on memory and on brain-derived neurotrophic factor content in the hippocampus and prefrontal cortex, and behaviour in withdrawal models.
Selank in the UK: sizes, prices and delivery
BSR holds Selank in stock in the UK and posts it by Royal Mail, so an order normally arrives within one or two working days, with no customs charge and no import delay. Each size is one lyophilised vial, for laboratory research use only.
| Size | Price | Per mg | UK stock |
|---|---|---|---|
| Selank 5mg | £19.99 | £4.00 | In stock |
| Selank 10mg | £34.99 | £3.50 | In stock |
| UK delivery | Arrives | Cost |
|---|---|---|
| Royal Mail Tracked 48 | Two working days | £3.95, free on orders over £75 |
| Royal Mail Tracked 24 | Next working day | £4.95 |
| Royal Mail Special Delivery | Guaranteed by 1pm next working day · £750 cover | £10.95 |
Orders placed before 3pm Monday to Friday are dispatched the same working day. Shipping and returns.
Mechanism in the literature
As a tuftsin analogue, Selank is studied for both immunomodulatory and central nervous system activity. Published rodent studies report regulation of BDNF content in specific brain regions.
The evidence base is predominantly rodent research published in Russian journals. Selank has no marketing authorisation and is supplied for laboratory research only.
Handling and reconstitution
Supplied lyophilised at 5mg and 10mg. Standard handling: room temperature, diluent down the wall, swirl gently.
Storage and stability
Lyophilised at -20°C, protected from light, two-year retest date on the certificate. Reconstituted solution refrigerated, short window.
Common questions
What purity is BSR's Selank?
The current batch tests at 99.63% by HPLC with LC-MS identity confirmation at 752.0 Da against a theoretical 751.90. Sequence TKPRPGP. The certificate accompanies your order.
How does Selank relate to tuftsin?
Selank is a synthetic analogue of tuftsin, a naturally occurring tetrapeptide with immunomodulatory activity. The analogue was designed for greater stability than tuftsin itself.
How much does Selank cost in the UK?
BSR sells Selank at 5mg £19.99, 10mg £34.99. The 10mg vial works out cheapest at £3.50 per milligram, against £4.00 for the 5mg. UK delivery starts at £3.95, and the cheapest delivery is free on orders over £75.
Where can I buy Selank in the UK?
BSR supplies Selank from stock in the UK at 5mg £19.99, 10mg £34.99, for laboratory research use only. Orders placed before 3pm Monday to Friday are dispatched the same working day by Royal Mail.
How much is Selank 5mg?
Selank 5mg is £19.99 for one 5 mg lyophilised vial, which is £4.00 per milligram. It is in stock in the UK, for laboratory research use only.
How much is Selank 10mg?
Selank 10mg is £34.99 for one 10 mg lyophilised vial, which is £3.50 per milligram. It is in stock in the UK, for laboratory research use only.
- Kolik L.G. et al. (2019) — Selank protects against ethanol-induced memory impairment by regulating BDNF content, Bulletin of Experimental Biology and Medicine
- Konstantinopolsky M.A. et al. (2022) — Selank attenuates aversive signs of morphine withdrawal in rats, Bulletin of Experimental Biology and Medicine
Cited as research context. BSR has no involvement in these studies and they do not constitute claims about this product.
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