r/Semax

Hi everyone!

Around 10 years ago, I used to run a blog called topbrainboosters, but I have not been active in the community for a long time.

Recently, I got curious about how things have changed and have been lurking for a while. I noticed that a lot of the older sources for Russian pharma nootropics like Semax and Selank seem to have disappeared or are no longer shipping to the US.

I am currently trying to understand whether there is still any real interest in these compounds and whether people actively look for them nowadays.

If there is demand, I am considering setting up a small way to make them available again for people who are interested, starting in a very limited and controlled way, just to see if it even makes sense.

P.S. I understand a fresh account isn't ideal, but I created it for privacy and to separate it from my old online activity.

Would be interested to hear your thoughts and how people are sourcing these nowadays

I just took my first dose of Semax today and, honestly, just wow!
Fluid thoughts, flow state on standby. Will it last? Does clarity diminish over time with continued use?

So I am relatively new to using peptides. Have been holding on to NAD, Glow, Semax, Ghk-cu, and BPC157 for over a month. I was finally ready to reconstitute them and get started on my first shot.

Since I have heard some serious mixed reviews on Semax, (my vile was 11mg) I couldn't understand how to get the proper dose with some of you using only 200-300mcg, and also complaining of having no effects. So I decided to do a 2.5mg big dose done once a week, stacked with 10mg NAD+

I dosed as 9pm at night, knowing I had to be up at 10am.

After the dose within 10 minutes I felt a head change, and started to feel the effects. After 30 minutes, I was feeling incredible. I planed to be asleep by 11pm so I got in bed at 10:30. I closed my eyes, I saw these yellow/orange sparks igniting, and these weird faces that kept morphing and turning into different faces and objects. It was rather mind blowing, my synapses were firing with each spark and flare which apeared to be connecting to other structures, what I can presume looked like neuron channels, the effects were not only physical but visual. I fell asleep shortly before 11pm and woke up feeling incredible, after having the most intense visual dream that lasted an entire day and night (in my dream perspective) that I could recollect and actually interpret. That dream stuck with me for days.

It has been 5 days since this first dose.

I am curious to know what your experiences have been like on high doses? I also cannot find anyone who has taken it at night with my dose. I am wondering if I should high dose, then do small maintenance doses throughout the week on mornings. Or stick to my 2.5mg dose and maybe switch to daytime to see what that is like.

However I am also looking forward to another night time adventure in 2 days. And just sticking to my once a week structure.

Looking forward to your replies and insight.

I’ve now run both nasal Semax and subQ injectable Semax, and I wanted to share my experience along with patterns I keep seeing across threads. Dose and cycle at bottom

TLDR: Both work really well for me, effects from nasal are more immediate but also more dampened. Overall which one is better depends on personal preference. I will continue to do injectable semax for the foreseeable future as it has increased my mental clarity, active recall, and reduced brain fog.

My Experience

Nasal (first exposure):

• Within ~10–20 min I’d feel a noticeable mental clarity boost
• Very clean stimulation-not like caffeine
• more motivation/better focus on work I need to do
• Slight mood lift
• Downsides: inconsistent dosing (some days hit, some didn’t)

Injectable (later cycle):

• Took longer to “feel” (~30–60 min), but WAY more consistent
• Effects felt deeper, less of a quick clarity spike, more sustained focus across the day
• Less noticeable mood “buzz,” more just locked in and focused
• Same or better effects on focus
• Downsides: obviously more effort

Practical Tradeoff

• Nasal = easy, beginner-friendly, low barrier
• Injectable = commitment, but often preferred by people running longer protocols

Final Notes

• This is all anecdotal, so take what ive said with a grain of salt
• Individual response seems to vary a lot, based on what ive heard from other people individual responses vary a ton, so don't be shocked if your effects are different from mine/the norm
• Overall: recommend trying semax nasal first and then depending on how you respond consider injectable cycle later

**My cycle was the same for both, 400mcg / day 4 days per week 4 weeks on 4 weeks off

I keep seeing the same pattern:

People jumping into Semax (and similar compounds) expecting a noticeable cognitive upgrade while their sleep, exercise, and basic habits are all over the place or while actively using neurodegenerative substances.

I’m not anti-Semax, I use it myself regularly, but the context I often see it being used in is kind of wild to me.

What Semax is actually doing

One of the main reasons people use Semax is its effect on BDNF (brain-derived neurotrophic factor) which is a protein tied to neuroplasticity, memory, and overall brain resilience. Higher BDNF basically means your brain is in a better state to learn, adapt, and perform.

Studies in non-human models have found a ~1.4x increase in BDNF in the hippocampus from a 50mcg/kg injection. That's a reasonable ballpark for what the effect could look like in humans. Based on these findings, it is safe to say semax:

• supports neuroplasticity (learning/adaptation)
• may improve memory formation
• contributes to overall cognitive resilience

The appeal makes sense. The paradox is that basic habits can increase BDNF and have similiar(if not greater) effects while completely avoiding any of Semaxes, albeit minimal, side effects.

The fundamentals(exercise, sleep, hydration) provably hit the same systems as Semax

• A hard workout can spike BDNF significantly (30-50% spike, 10-20% retained increase)
• Consistent training can raise baseline levels over time
• Good sleep keeps BDNF from dropping in the first place
• Hydration and balanced micronutrient rich diet supports neuron generation and neurplasticity

These have been proven in much more convincing settings than in rat models

**So if your sleep is inconstant, your sedentary, or your overly dehydrated, running semax may help you but your building on a shaky foundation.

Why do I still use it

I would say I have relatively good habits. I workout regularly, track my sleep with a Whoop and get ~8hrs/night. I have pretty good baseline focus and cognition.

That being said, Semax still offers:

• a small bump in focus
• slightly better mental clarity
• smoother motivation

It's not dramatic but it's definitely a noticeable edge.

Overall, Semax is a great tool, but don't let it keep you from overlooking the simple, non pharmacological, things you can do to improve your cognitive abilities, focus, and motivation. IMHO Semax should be used to optimize daily life and compliment good habits, not make up for bad habits and neurodegenerative behavior.

TLDR: Before injecting Semax, make sure your exercising and getting good sleep

Also, just my opinion, if you have any comments or questions about my own experience with Semax just lmk and im happy to answer any questions.