Cognitive / Nootropic
Semax
Focus, memory, and neuroprotection from a Russian-developed ACTH-derived peptide with the most extensive nootropic research base of any cognitive peptide. It upregulates BDNF and modulates neurotransmitter systems without stimulant side effects. Physician-prescribed and pharmacy-compounded for California patients.
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Physician-reviewed peptide therapy, prescribed only when appropriate.
Protocol at a glance
- Dose
- 200–900 mcg/day
- Route
- Intranasal or subcutaneous
- Frequency
- Daily, AM & early PM
- Timing
- Avoid late-day doses
- Typical cost
- $100–200/mo
Physician-reviewed. Prescribed only if appropriate after a telehealth consult — full refund if a licensed clinician determines it isn't right for you.
Why patients choose it
Why patients choose Semax
Upregulates BDNF
One of the most potent BDNF-upregulating compounds known — driving neuronal survival, synaptic plasticity, and learning.
Focus without the crash
Improves attention, working memory, and processing speed without the jitteriness, cardiovascular stress, or crash of stimulants.
Neuroprotective
Direct protective effects against ischemic injury and anti-inflammatory action in the CNS, on top of its cognitive benefits.
Overview
What Semax is
Semax is a synthetic heptapeptide (7 amino acids) derived from the N-terminal fragment of ACTH (adrenocorticotropic hormone). It was developed in Russia in the 1980s and is approved there as a nootropic and neuroprotective drug. In the US it is available as a compounded research peptide.
BDNF (brain-derived neurotrophic factor) is often called 'fertilizer for the brain.' It promotes neuron survival, drives synaptic plasticity — the foundation of learning and memory — and protects against neurodegeneration. BDNF declines with age, chronic stress, poor sleep, and a sedentary lifestyle. Semax is one of the most potent BDNF-upregulating compounds known, and that mechanism underlies its cognitive enhancement, antidepressant-like, and neuroprotective effects.
Candidacy
Who it's for
Semax is most commonly pursued by adults looking to optimize cognition without the downsides of stimulants. Clinical research and patient reports describe a consistent set of effects:
- Improved focus and attention
- Enhanced working memory and faster information processing
- Reduced mental fatigue under cognitive load
- Improved mood stability
Effects are typically felt within hours to days of starting. Semax provides cognitive drive and focus; Selank provides anxiolytic calm and emotional stability. Together they create enhanced cognition without overstimulation — the most popular cognitive peptide combination in clinical practice.
Forms
Semax forms available
Semax is available in standard and modified forms. The N-acetyl modifications protect the peptide from enzymatic degradation, extending half-life and increasing CNS penetration — so lower doses achieve the same effects. Your physician will recommend the appropriate form.
- Semax — standard form, nasal or SQ. Relative potency 1x.
- NA-Semax — N-Acetyl, more stable. Relative potency ~3x.
- NA-Semax Amidate — most potent, longest half-life. Relative potency ~5x.
Pricing
Cost in California
Semax nasal spray or injectable runs $100–200/month. Consultation fees are $99–199 for the initial visit. See our full cost guide.
FAQ
Semax questions
Related peptides
Often explored together
Selank
Anxiolytic peptide commonly stacked with Semax for calm, focused cognition.
Learn more →DSIP
Delta sleep-inducing peptide for sleep quality and recovery.
Learn more →MOTS-c
Mitochondrial peptide studied for metabolic health and energy.
Learn more →NAD+
Coenzyme therapy supporting cellular energy and cognitive clarity.
Learn more →Get Semax in California
Physician consultation, prescription, and pharmacy delivery. No clinic visit required.
Check Your EligibilitySemax
Physician-reviewed