SemaxSemax nasal spray
Reread. Restart. Reach for another coffee.
Semax is a seven-amino-acid peptide studied in attention, memory, and neural signaling. Rebody offers it as a prescription nasal spray.

When focus keeps breaking
You know the work. Your attention will not stay with it.
The same paragraph takes three passes. A familiar name arrives a beat late. Another coffee makes you more awake, but not more absorbed. That felt problem is why Semax keeps surfacing, and why the evidence deserves a closer read.

Your Semax nasal spray
Nasal spray. 30-day supply.
Semax comes as a prescription nasal spray with a 30-day supply. The pharmacy label lists the exact strength. Your clinician sets the directions.
- Format
- Nasal spray
- Supply
- 30 days
- Directions
- Set by your clinician and printed on the prescription label
Compounded medications are prepared by a licensed 503A compounding pharmacy for an individual patient's prescription. Compounded drugs are not FDA-approved and have not been evaluated by the FDA for safety or effectiveness.
Start your online visitSemax, prescribed online.
Semax is a synthetic seven-amino-acid peptide with the sequence Met-Glu-His-Phe-Pro-Gly-Pro. It is related to an ACTH fragment but does not contain the sequence responsible for ACTH's adrenal hormone activity.
Rebody offers Semax as a prescription nasal spray with a 30-day supply. The pharmacy label lists the exact strength. Your clinician sets the directions.
On October 28, 2026, HHS announced an interim policy that lets licensed 503A compounding pharmacies prepare six peptides under set conditions. This is not FDA approval. Semax is one of the six. Rebody offers it as a single-ingredient nasal spray, prescribed only after a licensed clinician reviews your online visit.
Studies have examined Semax in attention, memory, neuronal signaling, and ischemia models. A 24-person resting-state fMRI experiment measured short-term changes in the brain's rostral default mode network after intranasal Semax.
In rat hippocampus, one intranasal dose was followed by 1.4-fold higher BDNF protein, 1.6-fold higher trkB phosphorylation, 3-fold higher exon III BDNF mRNA, and 2-fold higher trkB mRNA.
The label identifies whether the prescription contains Semax free base or Semax acetate, plus the concentration, directions, storage, beyond-use date, and dispensing pharmacy.
No. Semax is not an FDA-approved drug. A compounded Semax prescription is prepared for an individual patient by a licensed U.S. compounding pharmacy.
