Coming soonSemax · 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.
Be first to know when orders open.
Product updates and occasional emails. Unsubscribe anytime.
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.
Get Semax updates →
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

The molecule
7 aaSeven 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 ↗
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.

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.
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
Semax questions
Straight answers about Semax.
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 →Get Semax updates.
Join for the exact Semax substance, nasal-spray specifications, price, states served, and availability.
Product updates and occasional emails. Unsubscribe anytime.
