Peptide Codes Forum

ok so ive been deep diving into nootropic peptides for like the past year and finally pulled the trigger on running both semax and selank back to back to see which one actually does something for my brain lol. most of u guys kno me from the GH peptide threads but cognitive stuff is lowkey becoming my new obsession

quick background - im a software dev so like mental clarity and focus is literally my job. been dealing with brain fog for ages, tried all the usual stuff like lions mane, racetams, caffeine stacking etc. none of it really moved the needle enough for me to keep paying for it

SOURCE: grabbed both from a place called Limitless Life Nootropics. done multiple orders, always fast shipping, test results are on their site. not affiliated just been a happy customer. also tried a batch from Pure Rawz for comparison

SEMAX FIRST (ran for 6 weeks)

dosed at 300mcg intranasal in the AM. worked up from 200mcg first week just to see how i responded. some guys go way higher like 600-900mcg but honestly 300 did plenty for me

the positives were pretty noticeable within like week 2. focus was sharper, like that scattered feeling u get where ur switching between 10 tabs mentally just... quieted down. also word recall got better which sounds dumb but when ur on a video call trying to explain architecture to non technical people it actually matters lol. mood was subtly elevated too, not like euphoric just like... baseline was higher if that makes sense

negatives tho - the taste/smell intranasal is absolutely disgusting, every single time. also noticed some mild anxiety creeping in around week 4 when i bumped to 400mcg for a few days. dropped back to 300 and it went away. some people report irritability and i def had a couple days where i was snappier than usual. also this stuff degrades FAST if u dont keep it cold, lost a vial bc i got lazy about the fridge

SELANK AFTER (6 weeks same structure)

200mcg intranasal to start, peaked at 300mcg

ok so this one surprised me more than semax honestly. semax felt like a stimulant-adjacent thing, selank is completely different vibe. its way more anxiolytic, like the background noise of stress just gets turned down. focus was still there but it was more calm focused vs semax which was more like driven focused if that makes sense

mood improvement was honestly better with selank for my use case. sleep quality went up noticeably which is huge for cognitive performance anyway. the anti anxiety effect was real, i have some social anxiety and it was def blunted

negatives - results took longer to show up, like week 3 before i really felt it. also harder to notice objectively bc its more of a subtraction thing (less anxiety) vs addition (more focus). some people wont even notice it working which could be frustrating if ur expecting some dramatic effect. also shorter half life means the intranasal dosing twice a day is kinda annoying to maintain consistently

VERDICT

both are legit imo but for different things. semax if u need to grind and produce, selank if ur dealing with stress/anxiety tanking ur cognitive output. im actually considering stacking them at lower doses of each and some guys in the nootropic community do this with good results apparently

neither one is magic and if ur sleep, diet and training are garbage these arent gonna save u. but as an add on to an already dialed in routine? yeah i think theres something here

would rate semax 8/10 selank 7.5/10 overall

anyone else run these? curious if the anxiety sides on semax are common or if i just have a sensitivity to it

gainz_peptide_bro wrote:im actually considering stacking them at lower doses of each and some guys in the nootropic community do this with good results apparently

dude YES do the stack, this is literally what i ended up doing after running them separately same as u. the combo is honestly where it gets interesting. i was doing like 200mcg semax + 150mcg selank in the AM and the selank basically cancels out that edgy/anxious feeling u get from pushing semax too high. its like semax gives u the engine and selank smooths out the ride lol

ur breakdown of "driven focused vs calm focused" is spot on btw, thats exactly how id describe it. i always struggled to put it into words when people asked me about it

the anxiety thing on semax is def real and ur not just sensitive, ive seen a ton of guys report the same thing when they push past that 300-350mcg range. dopaminergic activity probably. staying at 300 is the sweet spot for most people imo

also 100% agree on the selank being more of a subtraction effect - thats why people dismiss it too fast. ur not gonna feel ANYTHING dramatic, its more like u realize two weeks in that u havent been grinding ur teeth at ur desk lol. easy to miss if ur not paying attention

good log man, software dev perspective is cool too bc like ur literally benchmarking ur own output every day at work. did u notice any difference in actual productivity metrics or was it more subjective feel?

gainz_peptide_bro wrote:im actually considering stacking them at lower doses of each and some guys in the nootropic community do this with good results apparently

Not "apparently." The complementary mechanism here is well documented. Semax upregulates BDNF and hits dopaminergic/serotonergic pathways. Selank modulates GABAergic activity and enkephalins. They're not redundant, they're genuinely complementary. This isn't bro science, there's actual Russian research on this going back decades even if the Western literature is thin.

IronGut is right about the stack rationale. The anxiogenic creep from semax at higher doses is the dopaminergic activity getting ahead of itself. Selank's anxiolytic profile addresses exactly that. You're not just "smoothing the ride" you're hitting a different mechanism entirely.

One thing I'll push back on slightly - your selank score of 7.5 vs semax 8 is probably backwards for your stated use case. You literally said your problem is brain fog AND social anxiety affecting your work. Selank addressed the anxiety that was tanking your cognitive output at the root. That's more valuable for your specific situation than the stimulant-adjacent push from semax.

The degradation issue on semax is real and underappreciated. Guys lose half their vial to improper storage and then wonder why results aren't consistent.

Decent log overall. Better than most of the garbage posted in these threads.

GrumpyOldResearcher wrote:your selank score of 7.5 vs semax 8 is probably backwards for your stated use case. You literally said your problem is brain fog AND social anxiety affecting your work. Selank addressed the anxiety that was tanking your cognitive output at the root.

ok yeah u got me there lol, fair point. i think i subconsciously scored semax higher bc the effects were more noticeable and easier to attribute, like u feel it and ur like "ok yeah thats doing something." selank being more of a subtraction effect makes it harder to give credit to even when ur brain is objectively running better. kinda like how u dont thank ur sleep for being good, u just notice when its bad ya know

and yeah the BDNF upregulation on semax is actually what pulled me toward it in the first place, been low key chasing anything that supports that pathway for a while now. appreciate u dropping the actual mechanism breakdown bc i was being kinda hand wavy about it in my log. the GABAergic angle on selank i didnt fully understand until now honestly

IronGutPeptideBro wrote:did u notice any difference in actual productivity metrics or was it more subjective feel?

both tbh. subjectively it was obvious. objectively i was tracking my github commits lol (nerd i know) and also just my standup notes to see how coherent i was being. semax weeks my output was measurably higher in terms of like tasks closed. selank weeks the output was similar but i stopped dreading meetings and my PRs had way fewer "wtf was i thinking" moments when i reviewed them later lmao

gonna pull the trigger on the stack next cycle for sure. gonna start conservative tho, like 150/150 and work up. will def post a followup log