I run a demanding remote engineering role that requires sustained deep work alongside constant Slack interruptions. My baseline state is caffeinated anxiety -- I function, but I function through a fog of cortisol and espresso. I had used Semax previously with modest success for focus, and added Selank after reading about the combination on Russian nootropics forums.
The protocol: each morning after a shower (to clear nasal passages), I administered Selank (200 mcg per nostril) followed five minutes later by Semax (300 mcg per nostril). Both from lyophilized powder reconstituted in bacteriostatic water using a metered spray bottle delivering 100 mcg per spray.
The combination produced a state I can only describe as "optimized baseline." Not enhanced. Not drugged. Just operating at what feels like my cognitive ceiling without the usual friction.
Selank contributed: reduced background anxiety, fewer intrusive worry-thoughts, less emotional reactivity when Slack messages interrupted deep work. I stopped having the cortisol spike that normally accompanies unexpected messages from managers.
Semax contributed: sharper focus onset, improved ability to hold complex code structures in working memory, a subtle increase in processing speed.
Together: a clean, sustained, anxiety-free focus state that lasted about four hours. Not euphoric. Not stimulating in the jittery caffeine sense. Just... clear. I reduced my coffee intake from four cups to one during this period, not by willpower but because the anxious need for caffeine-driven alertness diminished.
I tracked my GitHub commit frequency and code review turnaround time as rough productivity proxies. Both improved modestly (commits up about 15%, review turnaround down about 20%), though confounds abound.
The only issue: cost. Running both peptides daily gets expensive quickly, especially from vendors with genuine third-party testing. I now use the combination only during high-demand weeks and use Selank alone as a daily baseline.