HomePeptides › Semax

Semax labeled vial
Cognitive / Nootropic

Semax

Neuroprotective peptide. Enhances BDNF, memory, and focus.

Route: SubQ (or nasal)Shelf life once mixed: ~28 daysCategory: Cognitive / Nootropic

What Semax is

Semax is a synthetic heptapeptide, an analog of the ACTH(4-10) fragment, known to exert multifaceted neurobiological effects. Its primary mechanisms involve the upregulation of brain-derived neurotrophic factor (BDNF), a protein crucial for neuronal survival, growth, and synaptic plasticity. This peptide also appears to modulate the activity of monoamine neurotransmitter systems, specifically influencing the levels and signaling of dopamine, serotonin, and norepinephrine, which are integral to cognitive function, mood, and attention. Additionally, Semax has been shown to enhance the activity of enkephalinases, enzymes responsible for breaking down endogenous opioid peptides, contributing to its observed stimulating and adaptogenic properties. Its effects are often prolonged despite a relatively short systemic half-life, attributed to its downstream biochemical impacts.

Observations from research suggest that Semax may contribute to enhancements in memory, focus, and overall cognitive processing, alongside potential improvements in stress adaptation. While some acute perceptual effects on attention may be noted relatively quickly, the more substantial neurotrophic benefits associated with BDNF upregulation are typically observed to develop over days to weeks with consistent research application. Research protocols often involve administration cycles of several weeks, commonly ranging from two to four, followed by a period of discontinuation. This peptide is generally administered intranasally due to its limited oral bioavailability. It is important to emphasize that Semax is strictly a research compound and is not approved for medical use, and information regarding its use is presented for educational purposes only.

Commonly reported effects

Reported side effects & considerations

Storage & handling

LYOPHILIZED (unopened): store at 2-8°C (fridge) or -20°C (freezer) long-term. Protect from light.

AFTER RECONSTITUTION: refrigerate 2-8°C. Do NOT freeze. Discard after 28 days OR if the solution becomes cloudy, discolored, or contains particulates.

What people track

Because individual responses vary so much, the useful thing is your own record: what you logged and when, how much is left in the vial, and how your chosen metrics move over the weeks. Peptide Wizard keeps all of that in one place, alongside a 3D reference vial for Semax.

FAQ

What is Semax?

Neuroprotective peptide. Enhances BDNF, memory, and focus.

What do people commonly report with Semax?

Commonly reported effects include improved cognition, neuroprotection, better focus, mood support.

How should Semax be stored?

LYOPHILIZED (unopened): store at 2-8°C (fridge) or -20°C (freezer) long-term. Protect from light.

How do I keep track of Semax in my research log?

Peptide Wizard lets you record each entry, keep a vial ledger so you know what's left, and chart your own metrics over time. It is a logbook and reference only — it does not calculate or recommend doses.

More in Cognitive / Nootropic

Cerebrolysin vialCerebrolysinComplex of neuropeptides derived from porcine brain. Used for stroke r… Cortagen vialCortagenShort brain-tissue-derived bioregulator peptide. Promotes cortical rep… DIHEXA vialDIHEXANeurogenic peptide. Promotes synapse formation, potent cognitive enhan… DSIP vialDSIPDelta Sleep-Inducing Peptide. Promotes deep sleep and stress resistanc…

This page is educational. It does not contain dosing guidance and is not medical advice.

Keep your research organised

Peptide Wizard is a private logbook and reference library — log entries in seconds, track your vials, and watch your own metrics trend over time.

Get the app Browse the 3D library

Android + new features. One email, no spam, unsubscribe anytime.

Get the free app