Peptide Codes Forum

Ran Selank for the first time a few weeks back. Sharing notes because there's a lot of noise on this compound and not enough actual data points from people running it seriously.

Background: not running it for general wellness. Was dealing with stress response issues that were hammering my sleep quality and recovery. GH peptide protocols only go so far if your cortisol is a mess and you're waking up at 3am every night. Decided to test Selank as an adjunct.

Protocol I ran:
- 250mcg intranasal twice daily, morning and early evening
- 6 weeks straight, no cycling
- No other anxiolytics, no benzos, nothing competing with it

What I expected: some mild calming effect, maybe better sleep onset

What actually happened:
- Week 1-2: honestly subtle, almost wondered if I was placebo-ing myself. Slight edge-smoothing, nothing dramatic
- Week 3: this is where it shifted. Sleep quality measurably improved. The 3am wake-ups dropped significantly. Recovery metrics picked back up
- Week 4-5: noticeable reduction in that baseline low-level anxiety noise. Hard to explain but mentally cleaner. Still sharp, not sedated
- Week 6: solid. Stacked well with my CJC/Ipamorelin protocol. GH pulse quality felt better which makes sense if cortisol interference is reduced

Side effects: basically zero. Mild nasal irritation first few days, nothing worth mentioning after that.

The one thing nobody tells you: the effects are cumulative and build slow. If you run it two weeks and quit saying it doesnt work you missed the whole point. This isnt something that hits you like a drug. It works more like the absence of a problem than the presence of an effect. You realize its working when you notice you havent felt anxious in two weeks.

Would I run it again: yes. Probably go 8 weeks next time. Will reassess whether to cycle or run continuous after more research.

T_Ortega_Lifts wrote:The one thing nobody tells you: the effects are cumulative and build slow. If you run it two weeks and quit saying it doesnt work you missed the whole point.

This is such an important point and honestly I feel like it applies to so many of the anxiolytic and adaptogenic peptides that people sleep on because they're expecting that immediate "oh I feel something" hit. I actually heard Rhonda Patrick talk about something similar with certain compounds in the context of nervous system regulation - the body doesn't flip a switch, it recalibrates over time.

Your experience with the 3am waking is really interesting to me specifically. That pattern is so classically associated with cortisol dysregulation and HPA axis issues - like that's almost textbook for when your cortisol starts spiking too early in the pre-dawn window and pulls you out of your restorative sleep phases. The fact that Selank addressed that indirectly by just calming the whole stress response system makes a lot of sense mechanistically.

I have a few questions because I'm seriously considering adding this into my own stack and your log is one of the more methodical ones I've seen on here:

Did you notice any difference between your morning dose and evening dose in terms of how you felt? Like was the evening dose more sedating or was it genuinely the same neutral calming effect at both times of day? I ask because I run BPC-157 in the evening already and I'm wondering about timing everything.

Also when you say your GH pulse quality felt better with the CJC/Ipamorelin stack - were you tracking that through subjective markers like body composition and sleep depth, or were you actually running labs? Because if there's bloodwork behind that observation I would love to know what markers you were looking at.

yo T_Ortega, great log man seriously this is the kind of actual data point stuff that should be stickied instead of all the "bro just take ashwagandha" threads lol

T_Ortega_Lifts wrote:Stacked well with my CJC/Ipamorelin protocol. GH pulse quality felt better which makes sense if cortisol interference is reduced

this is exactly what i wanna dig into. so you were running the CJC/Ipamorelin the whole 6 weeks simultaneously with the Selank? or did you already have a baseline established on the GH peptides before adding Selank in? like im curious whether you have a sense of what your sleep/recovery metrics looked like on CJC/Ipa ALONE before the Selank got added so you have something to actually compare against

also what doses were you running on the CJC/Ipamorelin side? 100mcg each pre bed or were you doing multiple pulses through the day

asking bc im currently on a similar GH stack and my sleep is honestly not where it should be and the 3am thing resonates HARD. never really connected it to cortisol messing with the GH pulses but that actually makes a ton of sense now that you put it that way

T_Ortega_Lifts wrote:The one thing nobody tells you: the effects are cumulative and build slow. If you run it two weeks and quit saying it doesnt work you missed the whole point. This isnt something that hits you like a drug. It works more like the absence of a problem than the presence of an effect.

This is precisely the framing that is missing from most community discussions around Selank, and I want to add some mechanistic context that may help explain why the timeline you observed - that meaningful shift around week 3 - is actually consistent with what we understand about the compound's primary mechanisms of action.

Selank is a synthetic heptapeptide analogue of tuftsin, and much of its anxiolytic effect appears to operate through modulation of GABA-A receptor sensitivity and upregulation of BDNF expression rather than through direct sedation or receptor agonism in the way benzodiazepines work. There is a reasonably well-cited body of Russian-origin research, including work published by the Serbsky National Medical Research Center, indicating that Selank influences serotonergic and dopaminergic transmission in a modulatory rather than forced manner. This class of mechanism inherently requires time for downstream neuroplastic changes to accumulate. The week 3 shift you describe is not coincidental.

biohack_bella_87 wrote:That pattern is so classically associated with cortisol dysregulation and HPA axis issues - like that's almost textbook for when your cortisol starts spiking too early in the pre-dawn window and pulls you out of your restorative sleep phases.

Bella raises a valid point here and I want to build on it. The 3am cortisol surge phenomenon - often framed clinically as early morning awakening in the context of HPA dysregulation - is something I have seen referenced in at least a handful of papers examining the relationship between anxiety disorders and disrupted diurnal cortisol rhythms. When you reduce tonic anxiety and normalize stress reactivity through a compound like Selank, you are arguably addressing the upstream driver rather than patching the sleep symptom directly, which would explain why the improvement felt sustainable rather than artificially imposed.

To the question gainz_peptide_bro raised about your GH stack: I would genuinely like to know whether you had an established baseline on the CJC/Ipamorelin protocol prior to introducing Selank. That is actually the critical variable here from a methodological standpoint. If you added Selank at the same time you started the GH peptides, isolating what is doing what becomes significantly more difficult. Not questioning your observations at all - the cortisol/GH pulse interference hypothesis is well-supported - I just think that baseline distinction matters for how we interpret the data.

One additional consideration worth raising: were you tracking morning cortisol subjectively or through any objective measure such as waking HRV? Given your sleep recovery framing, I suspect waking HRV may have been one of the metrics that improved, and if so that would be meaningful supporting evidence for the HPA normalization hypothesis underlying what you experienced.

Appreciate the methodical write-up. This thread is already more useful than most of what gets posted here.

ok I just have to say - dr_peptide_curious dropping a reference to the Serbsky National Medical Research Center in a casual forum thread is sending me a little bit. Like I am fully HERE for the depth of this conversation but I did have a momentary vision of all of us eventually just posting in academic citation format and I think that's where we're headed and honestly? Fine by me. The bar keeps rising in here and I am not complaining.

gainz_peptide_bro wrote:never really connected it to cortisol messing with the GH pulses but that actually makes a ton of sense now that you put it that way

This is genuinely one of those "once you see it you can't unsee it" moments in biohacking and I feel like half the people running GH peptides and wondering why their results are underwhelming are just... running them on a cortisol-wrecked nervous system and wondering why the math isn't adding up. It's like trying to fill a leaky bucket and then questioning whether the water is good quality. Like bro. The bucket.

Anyway T_Ortega I am still very much waiting on your answer about the morning vs evening dosing because I have fully already started mapping out how this fits into my existing protocol in my head and I need that piece of information before I talk myself into anything

T_Ortega_Lifts wrote:Stacked well with my CJC/Ipamorelin protocol. GH pulse quality felt better which makes sense if cortisol interference is reduced

dude YES this is literally the thing i keep trying to explain to people and nobody listens lol. like your GH peptides can be perfectly dosed and timed and you can still be leaving a TON of gains on the table if your cortisol situation is trash. cortisol is basically the enemy of everything we're trying to do with GH stacks and people just... ignore it completely??

bella's leaky bucket analogy is actually perfect btw im stealing that forever

biohack_bella_87 wrote:half the people running GH peptides and wondering why their results are underwhelming are just... running them on a cortisol-wrecked nervous system

THIS. ive been saying this exact thing. i ran CJC/Ipa for like 4 months and results were solid but not GREAT and honestly looking back my sleep was not where it needed to be. started taking my stress management way more seriously and the difference was noticeable even without changing the peptide protocol at all.

now im seriously eyeing the Selank after reading this log. the week 3 shift T_Ortega described is really interesting to me bc dr_peptide_curious's explanation of WHY that timeline makes sense mechanistically actually clicks. its not like taking a pre workout where you feel it in 20 mins, its more like a slow system recalibration. makes total sense once you think about it that way.

gonna do more research before jumping in but this thread honestly pushed me way closer to pulling the trigger on it. good log OP, exactly the kind of write up this community needs more of

dr_peptide_curious wrote:To the question gainz_peptide_bro raised about your GH stack: I would genuinely like to know whether you had an established baseline on the CJC/Ipamorelin protocol prior to introducing Selank. That is actually the critical variable here from a methodological standpoint. If you added Selank at the same time you started the GH peptides, isolating what is doing what becomes significantly more difficult.

ok i gotta push back on this hard and im sorry but this is bugging me lol

this "you cant isolate the variable therefore the data is useless" argument gets thrown around constantly in these threads and it drives me CRAZY. like yes, dr_peptide_curious, youre technically correct in a pure methodology sense. congratulations on knowing what a control variable is. but we are NOT running clinical trials here. we are HUMANS trying to optimize our actual lives with actual stacks that have multiple things running simultaneously because thats just... how people use this stuff??

T_Ortega ran a 6 week log, reported his subjective markers, noted the timeline, explained the mechanism of why it makes sense. thats genuinely useful data. dismissing it or hedging it into oblivion with "well we cant really know" is just... not helpful to anyone trying to make a real decision.

also im specifically annoyed because T_Ortega literally said the CJC/Ipamorelin was already established before the Selank came in. go back and read the original post. he said it was an ADJUNCT to his existing protocol. the baseline was already there. so the whole "critical variable" concern you raised is kind of already addressed if you read carefully??

not trying to be a jerk dr_peptide_curious bc your mechanistic breakdown was actually solid and i learned stuff from it. but the constant "well methodologically speaking..." energy in threads like this sometimes makes it feel like perfection is the enemy of actually useful community information. T_Ortega's log is genuinely good. lets not pick it apart for not being a pubmed study lol

IronGutPeptideBro wrote:this "you cant isolate the variable therefore the data is useless" argument gets thrown around constantly in these threads and it drives me CRAZY.

Ok I actually think you and dr_peptide_curious are both kind of right here and I want to ask something that might thread the needle a little because I genuinely can't tell from the original post how long T_Ortega had been running the CJC/Ipamorelin before adding Selank in.

Like you're correct that he framed it as an adjunct to an existing protocol, which does imply there was some baseline established. But how long of a baseline? Was it 2 weeks? 6 months? Because there's a meaningful difference between "I've been on this GH stack long enough that my response to it was stable and predictable" versus "I started it a few weeks before the Selank and I'm just calling it existing." The first one is actually a pretty solid informal baseline. The second one is a lot murkier.

T_Ortega I genuinely hope you see this because I think that answer changes how most of us should interpret the GH pulse quality improvement you described. Not to pick apart your log - I want to be clear I think this write-up is excellent and exactly the kind of thing that should be referenced in future threads - but that specific detail would help a lot.

Also I'm still sitting here waiting on the morning vs evening dosing question I asked like three posts ago No pressure but my brain has essentially already drafted a protocol and I'm just waiting for that one piece before I either commit to it or send myself back to the drawing board. The timing piece matters a lot to me specifically because of how I have my evenings structured with other compounds and I don't want to be doubling up on anything that could over-sedate me before bed even if Selank is theoretically more neutral than sedating.

IronGutPeptideBro wrote:this "you cant isolate the variable therefore the data is useless" argument gets thrown around constantly in these threads and it drives me CRAZY. like yes, dr_peptide_curious, youre technically correct in a pure methodology sense. congratulations on knowing what a control variable is.

I want to address this directly because I think the frustration is somewhat misdirected, and Bella has actually articulated the actual concern more precisely than I did in my original post.

I did not say the data was useless. I said the interpretation of one specific observation - the GH pulse quality improvement - required knowing the baseline duration before we could attribute it with confidence to the Selank versus the GH protocol simply continuing to mature. Those are different claims. T_Ortega's log as a whole is genuinely excellent and I said so explicitly.

That said, I want to share my own experience here rather than continue debating methodology, because it is directly relevant.

I ran Selank for approximately seven weeks at a similar dose to T_Ortega - 250mcg intranasal, twice daily. My context was somewhat different. I was not running a concurrent GH stack at the time but I was tracking morning HRV consistently with a Garmin device and had roughly four months of baseline data prior to introduction. What I observed:

Weeks one and two were largely unremarkable from an HRV standpoint. I noted subjectively that reactive stress - the kind that follows a genuinely difficult day - seemed to recover faster than baseline, but I was honestly uncertain whether that was compound effect or expectation. Around day 18 to 21, my morning HRV began trending upward and held that improvement through the remainder of the run. The improvement was modest, roughly 8 to 12 percent above my rolling average, but it was directionally consistent and did not regress within the observation period.

The absence of sedation is worth confirming from personal experience. Both doses - morning and evening - felt functionally identical to me in terms of cognitive effect. There was no evening dose drowsiness that I could identify. I was running it approximately 30 minutes before my evening meal and noticed no interference with sleep onset or quality. If anything, as with T_Ortega, sleep architecture appeared to improve, which is mechanistically distinct from sedation.

biohack_bella_87 wrote:Also I'm still sitting here waiting on the morning vs evening dosing question

Bella, for what it is worth from my experience: I would not anticipate the evening Selank dose to compound problematically with BPC-157. They operate through entirely different pathways and Selank's lack of direct sedative activity suggests the concern about over-sedation is probably lower than you are anticipating. But I would encourage you to confirm your BPC-157 timing relative to your target sleep window regardless, as that compound has its own considerations worth keeping separate from the Selank question.

I am still genuinely curious about T_Ortega's HRV or cortisol tracking methodology, if any. That answer would significantly sharpen how we interpret the overall picture here.