What Semax is and what it is studied for
Semax is a synthetic heptapeptide derived from a fragment of ACTH, developed in Russia and studied there for decades for cognitive function, attention and recovery after neurological insult. Its reported mechanism is an increase in brain-derived neurotrophic factor (BDNF) and modulation of the dopamine and serotonin systems — which is why researchers describe it as "clearer" rather than "wired". It is not a stimulant and does not behave like one.
The house protocol takes the window note literally: 200–600 mcg, mornings, weekdays. Mornings because the reported effect is a few hours of sharper attention and a later dose will cost you sleep; weekdays because the research signal is best read against a consistent demand, and because two days off a week keeps the response from flattening. The protocol below runs from the bottom of the window to the middle and treats 600 mcg as a ceiling rather than a target.
Who it suits — and who should not run it
Written for the adult researcher with a cognitively demanding week — knowledge work, study, a leadership role — whose mornings are slow and scattered and whose sleep is already reasonable. The pen is a sharpening tool, not a fix for a sleep debt, and the protocol assumes the basics are in place. The house exclusions:
Not for
- A diagnosed psychiatric condition, or any medication acting on dopamine or serotonin, without the explicit agreement of the prescribing physician.
- A history of seizures.
- Pregnant, breastfeeding, or planning pregnancy in the next 6 months.
- Under 18.
- Chronic sleep of under six hours — fix the sleep first; Semax sharpens a rested brain, it does not substitute for one.
The house protocol
Once daily, Monday to Friday, subcutaneous in the abdomen a hand's width from the navel, alternating sides, within an hour of waking and before the first demanding block of work. Weekends are off. One pen = 300 clicks. The 10 mg pen delivers 33.3 mcg per click; the 5 mg pen delivers 16.7 mcg per click, so the same dose is twice the clicks.
Two phases: a two-week run-in at 200 mcg, then a six-week working phase at 400 mcg. 600 mcg is the soft ceiling and is reserved for the researcher who has completed a cycle at 400 mcg and wants to test the top of the window on a specific heavy-demand day — not as a daily dose.
| Pen | Dose per injection | Clicks | Frequency | Timing | Cycle |
|---|---|---|---|---|---|
| Semax 10 mg (33.3 mcg/click) | 200 mcg | 6 | Monday–Friday | Within an hour of waking | Weeks 1–2 — run-in |
| Semax 10 mg | 400 mcg | 12 | Monday–Friday | Within an hour of waking | Weeks 3–8 — working dose |
| Semax 5 mg (16.7 mcg/click) | 200 mcg | 12 | Monday–Friday | Within an hour of waking | Weeks 1–2 — run-in |
| Semax 5 mg | 400 mcg | 24 | Monday–Friday | Within an hour of waking | Weeks 3–8 — working dose |
| Soft ceiling | 600 mcg | 18 (10 mg pen) / 36 (5 mg pen) | Occasional, never daily | Morning only | Second cycle onwards |
Click total on the 10 mg pen: 10 days × 6 = 60, plus 30 days × 12 = 360, for 420 clicks → 2 pens (600 clicks), leaving 180 clicks — 6 mg — at the end of the cycle. On the 5 mg pen the same cycle is 840 clicks → 3 pens (900 clicks). Keep the pen in the fridge between uses.
Semax is generally well tolerated. The reports to expect in the run-in are a mild headache in the first few days and, in some researchers, feeling a little flat in the evening of a dosing day. Irritability, racing thoughts or any trouble falling asleep are the signal that the dose is too high or too late — drop back a phase and tell your coach.
Week by week — what people typically notice and when
| When | What is typically reported |
|---|---|
| Weeks 1–2 (run-in) | Subtle. The first report is usually that the first block of the morning starts faster — less time circling before getting into the work. |
| Weeks 3–4 | The working dose. Sustained attention through the morning is the typical change; researchers describe fewer tabs open in the head. |
| Weeks 5–6 | The effect is usually at its clearest here. Weekends off should still feel normal — if Saturday feels like a crash, the dose is too high. |
| Weeks 7–8 | Consolidation. The eight-week log — what you got done before noon — is the read, alongside sleep that should be unchanged from baseline. |
The protocol is judged on output, so keep a two-line morning log: when the first real block of work started, and how long it held. Caffeine stays where it was — do not add it on dosing days and remove it on weekends, or the log is measuring coffee. Sleep is the control variable: any drift in time to fall asleep is reported to your coach before the dose is changed.
Labs we ask for before and during
| Marker | When | Why it is on the list |
|---|---|---|
| Full blood count | Baseline | General safety baseline |
| Liver panel (ALT, AST, GGT, bilirubin) | Baseline | General liver check before an 8-week cycle |
| Cystatin C (never creatinine alone) | Baseline | Kidney measure not distorted by muscle or creatine |
| Fasting glucose | Baseline | General metabolic baseline |
| Ferritin, vitamin B12, vitamin D | Baseline | Each is a common and correctable cause of exactly the foggy mornings Semax is being run for |
| Resting heart rate, blood pressure | Baseline · weekly | A simple check that the compound is not behaving like a stimulant in you |
The baseline panel here is mostly about ruling out the cheap explanations: low ferritin, low B12 or low vitamin D produce slow mornings on their own, and correcting them is a better first move than any peptide. A weekly resting heart rate and blood pressure take a minute and confirm the compound is doing what the literature says and not what a stimulant would. Vitamin D, magnesium and omega-3 remain the only general supplements.
Stacking: what it pairs with
The natural partner is Selank, the other peptide in the cognition corner — studied for the calm side of the same equation. Semax in the morning and Selank later in the day is the classic pairing for the researcher who is both scattered and tense; the two are never injected at the same moment, and together they belong in a personalised protocol.
For the researcher whose problem is sleep rather than focus, the page to read first is DSIP. For the energy side of foggy mornings — the researcher running on fumes after travel — NAD+ works on a different axis and pairs without overlap. Semax sits quietly alongside the repair and skin pens and does not interact with the GH-axis pairings.
Common mistakes
- Dosing after lunch. A late dose costs sleep, and the sleep loss costs more focus than the dose gives back.
- Running it seven days a week. Weekends off are part of the protocol; the response flattens without them.
- Treating 600 mcg as the working dose. 400 mcg is the house dose; 600 mcg is an occasional ceiling for a later cycle.
- Mixing up the pens. The 5 mg pen needs twice the clicks of the 10 mg pen for the same dose.
- Stacking caffeine on top to "amplify" it. The log ends up measuring coffee.
- Using it to cover a sleep debt. Semax sharpens a rested brain. Six hours of sleep is the problem to solve first.
Frequently asked questions
How many clicks is a Semax dose?
On the 10 mg pen, 6 clicks is 200 mcg (the run-in) and 12 clicks is 400 mcg (the working dose). On the 5 mg pen the same doses are 12 and 24 clicks. One pen holds 300 clicks.
When should I take Semax?
Within an hour of waking, before the first demanding block of the day, Monday to Friday. Never after lunch, and never at weekends on the house protocol.
Is Semax a stimulant?
No. It is studied for raising BDNF and modulating dopamine and serotonin signalling; the reported effect is clearer attention, not a buzz. A racing heart or racing thoughts mean the dose is wrong, not that it is working.
How long does a Semax cycle last?
Eight weeks: two at 200 mcg, six at 400 mcg, weekday mornings only. Spacing before a repeat cycle is a personalised-protocol decision.
Can I run Semax and Selank together?
Yes — Semax in the morning for focus and Selank later in the day for calm is the classic pairing. They are never injected at the same moment, and the combination belongs in a personalised protocol.
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