Selank
A lab-made peptide based on a natural immune fragment, studied in Russia for calm focus without the drowsiness of a sedative.
Learn about SelankWellness & vitality
Semax
A lab-made peptide built from a piece of a natural stress hormone, studied for focus, mood, and brain-protection signals.
- Origin
- ACTH fragment
- Type
- Lab-made peptide
- Category
- Wellness & vitality
- FDA status
- Not FDA-approved
Overview
What it is
Semax is a lab-made peptide built from a short section of ACTH, or adrenocorticotropic hormone. The section it uses does not carry the hormone's usual effect on the adrenal glands.
Semax was developed at the same Russian institute as selank and is registered there as a medicine, including for use after a stroke.
It is built from a short section of ACTH, the hormone that tells the adrenal glands to release cortisol. The section semax uses does not carry that hormonal effect, so it acts on the brain without driving the stress response.
Like selank, its clinical evidence comes almost entirely from studies in one country and has not been repeated independently.
Benefits
What it supports
- Supports focus, memory, and mental performance goals
- Supports brain-health goals tied to how nerve cells adapt and grow
- Supports mood and motivation goals
- Supports brain-protection pathways studied in recovery settings
Mechanism
How it works
1
BDNF is a protein that helps nerve cells survive, form new connections, and adapt. It is central to learning and to recovery after brain injury.
2
Russian studies report that semax increases BDNF. That is the main mechanism behind claims about focus, memory, and brain protection.
3
It also appears to affect dopamine and serotonin signaling, the systems tied to motivation and mood.
4
A third line of work looks at protecting nerve cells from oxidative stress, which is where the stroke recovery research comes from.
Context
Who it's for
Adults focused on concentration, memory, and mental performance
People interested in how nerve cells adapt and form new connections
Adults looking at mood and motivation goals
People comparing semax with selank or pinealon
Landscape
In the landscape
How this compound compares to related options in the wellness landscape.
In this area
Related therapies
Other compounds that support overlapping wellness goals.
Questions
Semax FAQ
Good to know
Regulatory & considerations
Semax is not FDA-approved. That means the FDA has not reviewed it for safety or effectiveness for the uses described here. It is a registered medicine in Russia, but the FDA has not reviewed it and its trials have not been repeated elsewhere.
Peptides in our shop are sourced from US-licensed manufacturers.
Semax is not FDA-approved. It is registered as a medicine in Russia, but that approval does not carry over.
Its status under pharmacy compounding rules in the United States is still being decided.
Persistent problems with memory or focus deserve a proper evaluation, since sleep, thyroid, and medication side effects are common causes.
Shop Semax
See current pricing and availability for Semax in our shop. If a medical evaluation is needed, a licensed provider guides you through it.
Individual results vary. General information on this site is not a substitute for professional medical advice.