selank

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Selank®

57 Reviews

 

 

What is the Dosage of Selank?

The average dose is 2-3 drops in each nostril. Selank should be taken up to 3 times per day. The treatment course is 14 days.

One bottle of Selank contains 60 drops, each having 75 mcg of the active ingredient.

What Are the Side Effects of Selank?

Selank is generally well-tolerated. The side effects listed in the instructions are very rare and include irritation of the nasal mucosa and mild allergic reactions. No cases of overdose were recorded.

For more information on Selank dosages and side effects, please refer to the translated official drug sheets linked below. 

 

Selank Instruction 0.15% Nasal Drops 

 

  1. Zozulya et al (2001) The inhibitory effect of Selank on enkephalin-degrading enzymes as a possible mechanism of its anxiolytic activity 
  2. Kost et al (2001) Semax and selank inhibit the enkephalin-degrading enzymes from human serum 
  3. Sokolov et al (2002) Effects of Selank on behavioral reactions and activities of plasma enkephalin-degrading enzymes in mice with different phenotypes of emotional and stress reactions 
  4. Kozlovskaya et al (2003) Selank and short peptides of the tuftsin family in the regulation of adaptive behavior in stress 
  5. I. Kozlovkii, N. Danchev (2003) The optimizing action of the synthetic peptide Selank on a conditioned active avoidance reflex in rats
  6. T. Ganshina, I. Kozlovskii (2005) Effects of the new peptide anxiolytic drug selank on the cardiovascular system functioning and respiration in cats 
  7. Semenova et al (2007) Effect of selank on cognitive processes after damage inflicted to the cerebral catecholamine system during early ontogeny 
  8. Sarkisova et al (2008) Effects of heptapeptide selank on genetically-based and situation-provoked symptoms of depression in behavior in WAG/Rij and Wistar rats, and in BALB/c mice
  9. Zozulia et al (2008) Efficacy and possible mechanisms of action of a new peptide anxiolytic selank in the therapy of generalized anxiety disorders and neurasthenia 
  10. Uchakina et al (2008) Immunomodulatory effects of selank in patients with anxiety-asthenic disorders
  11. Medvedev et al (2014) A comparison of the anxiolytic effect and tolerability of selank and phenazepam in the treatment of anxiety disorders 
  12. Kolomin et al (2014) The temporary dynamics of inflammation-related genes expression under tuftsin analog Selank action 
  13. Medvedev et al (2015) Optimization of the treatment of anxiety disorders with selank 
  14. Volkova et al (2016) Selank Administration Affects the Expression of Some Genes Involved in GABAergic Neurotransmission 
  15. Kaisan et al (2017) Peptide Selank Enhances the Effect of Diazepam in Reducing Anxiety in Unpredictable Chronic Mild Stress Conditions in Rats
  16. Filatova et al (2017) GABA, Selank, and Olanzapine Affect the Expression of Genes Involved in GABAergic Neurotransmission in IMR-32 Cells
  17. Fomenko et al (2017) Effect of Selank on Functional State of Rat Hepatocytes under Conditions of Restraint Stress 
  18. Slominsky et al (2017) Peptides semax and selank affect the behavior of rats with 6-OHDA induced PD-like parkinsonism
  19. Vyunova et al (2018) Peptide-based Anxiolytics: The Molecular Aspects of Heptapeptide Selank Biological Activity
  20. C Doyno, C White (2021) Sedative-Hypnotic Agents That Impact Gamma-Aminobutyric Acid Receptors: Focus on Flunitrazepam, Gamma-Hydroxybutyric Acid, Phenibut, and Selank 
  21. Yasenyavskaya et al (2021) The Influence of Selank on the Level of Cytokines Under the Conditions of “Social” Stress 

 

4.1

Based on 57 Reviews

(38)

(3)

(6)

(1)

(9)

 

08/29/2025

jr

john r.

 Verified Buyer
US

US

it works

selank needs to come to usa for OTC. its works. the amount in the vial is so small however. not worth if you want to keep buying since it is such a small amount. also, not sure if the product is 100% shelflife by the time we receive since these peptides degrade. no instructions on how to store the peptide either

08/29/2025

CosmicNootropic

Hi John! Thank you for your feedback and for sharing your experience with Selank! We understand your concerns regarding storage and shelf life. Please note that the storage instructions can be found on the product page. Peptides are relatively stable during shipping, and when stored as recommended, they maintain their quality throughout the shelf life.

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08/19/2025

Wv

Whitney v.

 Verified Buyer
US

US

Disappointed

I thought there would be more. It’s a very small amount. And I thought it would be a nasal spray

08/19/2025

CosmicNootropic

Hi Whitney! Thank you for your feedback! We’re sorry for any confusion. The information about the amount and form of Selank is available on the product page, but we appreciate you pointing this out.

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07/27/2025

TN

Tahnee N.

 Verified Buyer
AU

AU

Selank for improving Mood lability

Effects were mild, I wasn't really sure if I could notice much and for the small amount you get for the price I probably won't buy that one again. The postage and ordering process was smooth and customer service was good though.

07/31/2025

CosmicNootropic

Hi Tahnee! Thank you for your honest feedback! We’re sorry to hear that Selank didn’t meet your expectations, effects can vary quite a bit from person to person, and we understand that it’s disappointing when results aren’t as noticeable as hoped. We appreciate your kind words about our service and shipping process.

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06/13/2025

CK

Can K.

 Verified Buyer
FR

FR

Good but pricey

Is calming as advertised. A bit pricey if you want to use regularly. Mebicar would be more bang for your buck for the same kind of effect

06/13/2025

CosmicNootropic

Hi Can! Thank you for sharing your feedback! We're glad to hear you found it calming as expected.

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05/28/2025

DW

Dan W.

 Verified Buyer
US

US

HiQuality Selank

Love the product, had a positive experience, did not enjoy the eye-dropper delivery mechanism, would have preferred the spray method.

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05/12/2025

Shawn L.

Shawn L.

 Verified Buyer
US

US

Like a squeegee for my brain

I tried Selank with Mebicar as well as solo and can definitely tell when I've not applied it. To be alert without being wired; to be focused without being mechanical... Definitely a keeper for me!

05/12/2025

CosmicNootropic

Hi Shawn! Thank you for the wonderful review!

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04/29/2025

DM

Diane M.

 Verified Buyer
US

US

Better than Rx alternatives

I’ve recommended this to several patients who only thought that benzodiazepines would work for their anxiety. I’m glad to say that many made the switch and had improvement in mood without the downsides of dependence and tolerance of the Rx meds. Success!

04/29/2025

CosmicNootropic

Dear Diane, thank you for your wonderful feedback! We're thrilled to hear that our nootropics have helped your patients find a better alternative for managing anxiety—naturally and effectively. Your support means the world to us!

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04/22/2025

MA

Murray A.

 Verified Buyer
US

US

Selank

I was disappointed. I guess I didn’t read it carefully enough, but I thought it would be a spray as that seems to be the more typical way to administer Selank. It’s very difficult to use properly in the form of a dropper, and it ends up not going very far.

04/23/2025

CosmicNootropic

Dear Murray, thanks so much for your feedback. We’re sorry to hear the dropper format wasn’t what you expected. Selank is supplied in its original manufacturer packaging, and unfortunately, we’re not able to alter that. We completely understand that the spray format can be more convenient, and we’ll make sure to clarify this more clearly on the product page.

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03/23/2025

AC

Amanda C.

 Verified Buyer
US

US

Amazing!

I feel so focused

03/26/2025

CosmicNootropic

Dear Amanda, thank you for your feedback! 🙌

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03/06/2025

T

Taylor

 Verified Buyer
US

US

waste

received two empty bottles of Semax and two nearly-empty bottles of Selank. I ordered Selank once before and the bottle came half full (i used for a week and put in the photo on the end with the dropper for reference). i want to return these for a refund but customer service is adamant on store credit or reshipment— they also said the two nearly-empty bottles of Selank are “probably fine” to use. I don’t appreciate the idea of using a medical product that is “probably fine” to use per a customer service rep. seriously disappointed in Cosmic Nootropic when i was excited to try an alternative to prescription meds. would rather be anxious in general than anxious over these products (or should i say lack there of). what a waste of time and money.

03/08/2025

CosmicNootropic

Dear Taylor, thank you for sharing your experience. We are very sorry that you had such an unpleasant experience and apologize on behalf of our company. We have already contacted you by email to resolve the issue. Please check it out.

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02/28/2025

JF

Justin F.

 Verified Buyer
US

US

Hands down my favorite Neuroprotective peptide Nootropic

Hands down my favorite Neuroprotective nootropic as I suffer from moderate/severe PTSD, anxiety and treatment, resistant depression, the first one I purchased directly from Cosmic and came in the brand name form directly from the manufacturer and I felt immediate relief within second after applying the first few drops in both my left and right nostrils, peaceful, gentle serene, feeling of calmness stillness, as well as focus, now the drawbacks with anything that modulates and is agonistic on GABA receptors, come the short lifved relief Do you too tolerance buildup, which can happen very quickly that is why I try to use it as needed sparingly and even take breaks at times if needed, The price is great you can’t be $20 .00 And the only other drawback is the vials are only half full, which is not a mistake or error. That is exactly how much is supposed to be in them. It’s just a shame they’re not filled all the way.and being the reason so nant graduate on the NA Amidate form of it, and the only other drawback, surely not just the formula from cosmic tropics, but just the nature of the peptide in general is dryness irritation, and sometimes scabbing around the tip of the nostril area that’s why you have some then there who have made it into a Diacetate form to reduce that nasal mucosa, dryness, redness, and irritation but overall, I absolutely love this anxiolytic/anti-depressive and antithetic peptide!! Thank you Cosmic Nootropicd and this of course is a subjective review. Always do your own research and or control with your primary care physician or general practitioner first is recommended. Thank you to the fabulous, always quick, kind, courteous, and friendly staff and support at Cosmic and Cosmic Nootroics For not only going above and beyond will even help try to source and locate a product for you, and that really made me a truly dedicated loyal, grateful and appreciative customer for life and Their ultra reliable and fast shipping and delivering speeds What can I say, Cosmic Nootropics is simply just Excellent in all areas thank you and live healthy and live well Kind Regards, Justin

03/02/2025

CosmicNootropic

Wow, thank you for such an in-depth and thoughtful review! We really appreciate you sharing your experience and insights — it means a lot to us. We’re glad to hear that Selank has been helpful for you and that you’ve had a great experience with our team and service. Noted on the nasal irritation and tolerance buildup — it’s always good to use these products mindfully. And yes, the vial fill level is as intended, but we totally get how it might seem surprising at first!

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12/26/2024

JF

Justin F

 Verified Buyer
US

US

Relief!

I wanted to say thank you guys again not only for your amazingly fast delivery times and low prices but for being a a rare gem as far I’m concerned and glimmer of hope for someone who suffers from horrible PTSD and panic disorder this has been truly amazing even if the relief is only temporary or is always there I still am very grateful and do what I can to get the word out about you guys, thank you again and look forward to placing more orders soon!

12/27/2024

CosmicNootropic

Hi Justin! Thank you so much for sharing your experience with us. It truly means the world to know that we've been able to bring you some relief and positivity. We're deeply grateful for your kind words and your trust in us. Your support and willingness to spread the word about us are incredibly appreciated. Please know we're here for you, and we look forward to continuing to provide the service and products you need. Thank you again, and we wish you all the best on your journey to healing and comfort! ❤️

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12/02/2024

MH

Morgan H.

 Verified Buyer
US

US

Doesn’t work

Didn’t do anything

12/03/2024

CosmicNootropic

Hi Morgan! Thank you for sharing your feedback! We understand that everyone's experience with products can vary, as each person’s body may respond differently. That’s why we always recommend consulting with a medical professional before starting any new medication or supplement. Your health and safety are our top priority, and a healthcare provider can offer personalized advice based on your specific needs.

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11/15/2024

s

shah

 Verified Buyer
US

US

selank droppers

used selank droppers with a protocol of 2 drops per nostril, once in the morning and again before bed for a total of 3 weeks. felt restorative sleep after long days of studying. highly recommend for those looking for long term benefits after putting in crazy hours for studying!

12/05/2024

CosmicNootropic

Hi Shah! Thank you for sharing your experience with Selank! We're glad to hear it made a positive difference, especially by supporting restorative sleep after intense study sessions. Your detailed feedback and recommendation are much appreciated—wishing you continued success!

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11/05/2024

YR

Yeras R.

 Verified Buyer
US

US

Selank

Excellent service, fast delivery and excellent quality of the product, strongly recommended.

11/06/2024

CosmicNootropic

Hi Yeras! Thank you so much for your positive feedback! We're thrilled to hear that you were pleased with our service, delivery speed, and product quality. It means a lot to us that you'd recommend us!

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10/29/2024

JB

Jim B.

 Verified Buyer
CA

CA

Great Product

I felt Selank was a good fit for my condition. However it must continually be pointed out that as good a company that Cosmic Nootropics is with products and services..... Delivery to Canada absolutely sucks!!!! I love Cosmic Nootropics BUT I'm not sure I'll order from them anymore because the shipping is completely unreliable. You just can't keep blaming customs!!! Figure it out please.

10/29/2024

CosmicNootropic

Dear Jim, thank you for your review and for your kind words about our products! We’re glad to hear that Selank has been a good fit for you. We truly value your feedback regarding the shipping issues to Canada. We understand how frustrating unreliable delivery can be, and we will certainly look into this issue. Your support means a lot to us, and we hope to provide you with a better experience in the future. If you have any other concerns or suggestions, please feel free to reach out.

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10/17/2024

AI

Aman I.

 Verified Buyer
GB

GB

Review

Pleasent and surprising

10/17/2024

CosmicNootropic

Hi Aman! Thank you for your thoughtful review! We’re glad to hear you had a pleasant experience and that our product surprised you in a positive way. If you have any specific feedback or suggestions that could help us earn that fifth star, we’d love to hear it!

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10/09/2024

CG

Connor G.

 Verified Buyer
US

US

Very beneficial

Very effective for stress relief and mental calmness. Enjoyed stacked with Semax

10/10/2024

CosmicNootropic

Hi Connor! Thank you for your review! We’re so glad to hear that you found our product beneficial for stress relief and mental calmness. It’s great to know you enjoyed stacking it with Semax! If you have any more tips or feedback, feel free to share. We're here to help!

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09/29/2024

CK

Cecil K.

 Verified Buyer
US

US

Works for me

It’s been great I adjusted the instructions and take only on the weekends or when feel very anxious n stressed.

09/30/2024

CosmicNootropic

Hi Cecil! Thank you for your feedback! We’re glad to hear that you found a routine that works for you. Adjusting the dosage to fit your needs is a smart approach. We appreciate your trust in us!

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09/13/2024

J

Josh

 Verified Buyer
US

US

Love it!

I have very high anxiety. Sometimes it can make me nearly un functional. It completely removes anxiety from me without making me feel tired or strange. I have never taken anything like this that actually really and truly removes all anxiety and allows me get on with a clear head.

09/16/2024

CosmicNootropic

Thanks so much for the feedback! We're really happy to hear that Selank has made such a difference for your anxiety without any weird side effects.

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7 years ago

Review

Josefin F. Verified Buyer

Helped me beyond words.

I've been on various psychiatric medications prior to trying Selank, most with little to no help - at one point leading more toward a benzodiazepine addiction. The first time taking Selank, it gave me an almost euphoric sense of calm and clarity. Probably not so much from the effect as from just experiencing the absence of suffering. I also suffer from major ADHD, for which it also seemed to help significantly sharpen my focus. The "euphoria" only lasted throughout the first bottle - probably because it actually helped me recover to a level that lasted even several weeks after I ran out. Yes, it did work that well. During this time I had also been struggling with infection and several cures of antibiotics - apparently, Selank seems to work partially by boosting the immune system, which would explain its efficiency at this point. After starting Selank I actually did recover a great deal in that area as well, which may very well be connected to the course. I use it less frequently now due to the cost, but even intermittent dosing seems to keep me going long-term. I suspect my HPA axis may be pretty messed up which is indeed a link betweene immune functionality and anxiety, further impairing my cognitive ability on top of the ADHD, so if you're physically imbalanced this may very well be more effective even for mental clarity and focus than the otherwise recommended Semax. Cosmic Nootropic has by far the best prices shipping to my area and I would definitely vouch for this product. Only downside is that delivery time varies and might leave you waiting for quite long, likely due to customs processing - so make sure to plan your orders timely if you're afraid of running out. After the initial period of recovery, Semax seemed to do more for my overall wakefulness and focus, so I would recommend trying both. Batch buying to get free shipping and discounts has been well worthwhile. Thank you for making this science available outside of Russia.

Reply:

Hi Josefin, Thank you for such an amazing and in-depth feedback! We are glad that Selank has helped you. As for the shipping delays, unfortunately, they are possible, as we can only carry out delivery via mail and customs are usually extra careful when checking supplements. But if there is no official prohibition of a certain compound, they let it through, eventually. We will be waiting for you next order!

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