Semax + Selank daily for a year — what actually held up

S
Joined 2026
41 posts
2/17/2026 · 2914 views

One-year followup. Semax every weekday morning, Selank every weekday afternoon, weekends off.

Doses: Semax 1% intranasal, ~300mcg per spray, 2 sprays per nostril AM = ~1.2mg. Selank 1% intranasal, same delivery, PM.

What held up: the AM Semax "lift" — reliably present, never habituated fully. Still lifts me ~20-30 min after dosing on a scale of "I feel like I can work" from 6/10 to 8/10. Subjective. Never did a blinded trial on myself and at this point I don't think I could.

What didn't: expected some kind of compounding cognitive benefit over months. Didn't materialize. The day-of effect is the effect.

Selank: this one surprised me. I expected mild anxiolysis. What I got was more like a floor on my anxiety response rather than a lower baseline. Less reactive to stressors. Day-of and also, I think, chronically.

Weekend washouts: I think these matter. When I've skipped washouts for extended periods the AM lift degrades. N=1.

Cost: ~$80/mo for both at typical sourcing. Manageable.

Downside: the AM dosing ritual is now part of my day. If I'm away from home I miss it. That's both a feature and a cost.

Questions for the cog-nerds: anyone run these longer than me? Anyone sensitive to Selank's chronic effect vs. acute? Anyone combined with anything unexpected?

Focus stack
  • Semax · 600 mcg · AM intranasal · intranasal
  • Selank · 250 mcg · as needed · intranasal

15 Replies

S
Joined 2026
34 posts
2/18/2026

Username obligation. Two years on Selank, similar pattern: floor not ceiling. Chronic effect is real in my experience but subtle and easy to miss until you stop and something stressful happens and you notice you're more reactive than you remembered being.

N
Joined 2026
18 posts
2/20/2026

Dihexa-free nootropic thread finally. I've stacked Semax AM with low-dose caffeine and it's synergistic in a way I can actually feel. Without caffeine, Semax is good. With, it's more than either alone.

P
Joined 2026
23 posts
2/20/2026

My experience after ~10 months on the same protocol mirrors yours almost exactly. Day-of effect holds. Expected chronic compound didn't appear. Selank floor-effect is real.

D
Joined 2026
11 posts
2/21/2026

Good thread. This is what responsible cog-peptide discussion looks like. I ran Semax for 3 months, confirmed day-of effect, dropped it for cost/ritual reasons not efficacy reasons.

C
Joined 2026
23 posts
2/22/2026

Curious whether you've tried Cerebrolysin courses alongside. Different mechanism, different time horizon. I run 10-day courses twice yearly and feel like it does something the Semax day-of can't.

S
Joined 2026
41 posts
2/22/2026

Haven't tried Cerebrolysin. Been tempted. The 10-day IM course is a logistical hurdle I haven't been willing to clear yet.

Focus stack
  • Semax · 600 mcg · AM intranasal · intranasal
  • Selank · 250 mcg · as needed · intranasal
H
Joined 2025
205 posts
hexaclinicContributor
2/24/2026

The "floor not ceiling" framing on Selank is the best description I've read. Stealing it.

Q2 stack
  • CJC-1295 no DAC · 100 mcg · pre-bed · sub-Q
  • Ipamorelin · 200 mcg · pre-bed · sub-Q
  • BPC-157 · 500 mcg · 2x/day · sub-Q
S
Joined 2026
34 posts
2/25/2026

That's fair. The chronic Selank claim is vibes-based. I'd believe a null result in a real trial. I just wouldn't expect the trial to capture whatever I think I'm noticing.

S
Joined 2026
115 posts
2/25/2026

I'll play the role. Semax acute effect is the best-supported claim in this thread — small trials, consistent effect. Selank chronic effect in healthy people: basically no good data. I'm not saying you're wrong, I'm saying we should know which claims have support and which are vibes.

Q
Joined 2025
26 posts
2/28/2026

The weekend washout observation mirrors mine. When I did a month straight no breaks the AM effect softened. Came back after a 2-day gap. Tolerance is real, reversal is fast.

Nightshift
  • DSIP · 100 mcg · pre-bed · sub-Q
  • Epithalon · 10 mg · 10d cycles · sub-Q
C
Joined 2026
71 posts
3/1/2026

There's some mechanistic rationale for intermittent dosing with ACTH/MSH fragment peptides — receptor cycling. So the washout thing isn't just vibes.

F
Joined 2026
35 posts
3/7/2026

Newb question: is intranasal the only reasonable delivery? I see SC protocols online. Worse? Better?

S
Joined 2026
41 posts
3/8/2026

SC is used but most of the Russian literature is intranasal. For cog effects the nasal route seems preferred. I've never done SC for either.

Focus stack
  • Semax · 600 mcg · AM intranasal · intranasal
  • Selank · 250 mcg · as needed · intranasal
R
Joined 2025
22 posts
3/17/2026

Adding this to my shortlist. Appreciate the cost transparency — that's usually missing.

S
Joined 2026
2 posts
slow_typer_sNew Member
20d ago

This is the most useful thread I've read on these two peptides. Saving.

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