CosmicNootropic

CosmicNootropic

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Nootropics for brain & performance. Use Code FB10 for 10% off. Tested by astronauts, approved by biohackers. We ship across the US & worldwide.

03/05/2026

Most people think Selank just «calms you down». But that’s not really what’s happening.

In a 2016 study, researchers looked at gene expression in the frontal cortex after a single dose. Within 60 minutes, 45 genes changed. 22 were still active 3 hours later. A whole signalling network.

Selank modulates GABA-A receptors, but it also seems to go further:
* affects stress-response systems
* slows enkephalin breakdown
* increases BDNF expression

If you’ve ever combined it with Semax there might be a reason it works so well.

Semax → increases BDNF
Selank → reduces noise in the system

Together, they may reinforce each other.

Published research is linked on the product page if you want to go deeper.

🔗 link in bio

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