50% offfirst month · 3+ month plans
Semax nasal spray on mineral-teal glass with a narrow amber beam of light.Coming soon

Semax · focus and neural signaling research

Hold the thread.

Semax is a seven-amino-acid peptide studied in attention, memory, and neural signaling. Rebody's planned prescription nasal spray pairs the peptide with metered delivery. Orders are not open.

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Read the Semax focus guide
7 aapeptide length
Nasalintended format
Waitlistnot for sale

Why people are looking

Brain fog is not a personality trait.

Losing the thread mid-sentence, rereading the same paragraph, and reaching for more caffeine just to stay with the work can make a normal day feel needlessly heavy. Semax research centers on the neural systems involved in attention, memory, and adaptation.

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Semax nasal spray bottle on a white background.

Prescription nasal spray

The pump matters as much as the peptide.

A nasal spray has to deliver a consistent amount with every actuation. Before Rebody opens orders, the exact Semax substance, concentration, pump delivery, directions, storage, and price will be published together.

Format
Nasal spray
Strength
Confirmed before ordering
Price
Confirmed before ordering
Status
Orders closed
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Seven-part glass peptide chain representing the Semax amino-acid sequence.

The molecule

7 aa

Seven amino acids. One defined sequence.

Met · Glu · His · Phe · Pro · Gly · Pro

Semax free base and Semax acetate are distinct substances. The prescription has to identify the one actually used.

Read the molecule source ↗

Why nasal delivery matters

A nasal spray is a measured delivery system.

Consistent delivery depends on the pump output, spray uniformity, droplet size, microbial quality, and a formula matched to its container.

Read the nasal-product review ↗
Sagittal nasal anatomy showing spray entering the nasal cavity and reaching the olfactory region.
Metereddelivery per actuation
Uniformspray content
Matchedformula + pump
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Rat hippocampus experiment

One dose changed four BDNF/trkB measurements.

After a single intranasal dose in rats, researchers measured higher BDNF protein, trkB phosphorylation, exon III BDNF mRNA, and trkB mRNA in the hippocampus.

1.4×BDNF protein
1.6×trkB phosphorylation
BDNF exon III mRNA
trkB mRNA
Read the primary study ↗
Rat brain with the hippocampus highlighted beside three laboratory assay specimens.

Human fMRI experiment

Researchers measured the brain at 5 and 20 minutes.

Twenty-four healthy adults received intranasal Semax or placebo. Resting-state fMRI was collected before dosing, then at 5 and 20 minutes. The study reported a larger rostral default-mode-network subcomponent with Semax. The measured endpoint was brain-network activity.

24 adults14 / 10 Semax / placebo3 scan times
Read the fMRI study ↗

What Rebody adds

No mystery peptide. No mystery pump.

If Rebody offers Semax, it will be a prescribed, patient-labeled nasal spray dispensed by a licensed U.S. compounding pharmacy—not an anonymous bottle sold for research.

On the bottle
Exact Semax substance, concentration, metered delivery, directions, storage, and beyond-use date
Before checkout
Price, supply, states served, and refill timing
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Semax questions

Straight answers about Semax.

Good to know

Before you start.

Orders are closed

Know if Semax opens.

We'll send the exact nasal-spray formulation, price, states served, and availability date.

Read the Semax focus guide →
Coming soonOrders currently closed

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Join for the exact Semax substance, nasal-spray specifications, price, states served, and availability.

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