Semax (XA5 / XA11) | 99%+ High Purity Peptide Powder | 5 mg/vial & 10 mg/vial Available | CAS 80714-61-0 | Cognitive Enhancement, Neuroprotection, Men

Sales manager:  Eira
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Email:  sales01@cnspks.com

For Individual Buyers 

Looking for a peptide that supports your brain rather than your body? Semax (XA5 / XA11) is a nootropic peptide originally developed to protect and enhance cognitive function. Unlike stimulants that give you a temporary energy spike followed by a crash, Semax works by increasing levels of brain-derived neurotrophic factor (BDNF), which supports long-term brain health, memory formation, and mental clarity. Users report improved focus, faster learning, better stress tolerance, and a calm, alert state of mind without jitters or anxiety. Whether you are a student, a busy professional, or someone looking to maintain cognitive sharpness, Semax offers a science-backed solution. We offer two convenient sizes – 5 mg/vial (XA5) for $30 and 10 mg/vial (XA11) for $40 – so you can choose the option that best fits your protocol length and budget.

Key Benefits:

Enhances memory, learning, and focus

Protects brain cells from stress and damage

Reduces anxiety without sedation

No stimulant side effects like jitters or crash

Note:This is a research/cosmetic raw material peptide powder. Safe and discreet packaging provided.

For Suppliers / Wholesalers

Semax (XA5 / XA11) is one of the most respected nootropic peptides in the cognitive enhancement market. As demand for brain health and mental performance products continues to grow worldwide, Semax offers a unique value proposition – it is not a stimulant, not a drug, but a neuroprotective peptide with decades of research behind it. Our product delivers 99%+ purity, CAS 80714-61-0, in two popular formats: 5 mg/vial (XA5) at $30 and 10 mg/vial (XA11) at $40.

Why choose us?

Growing market for cognitive enhancement and nootropics

Two options to serve both trial users and long-term protocol customers

Stable inventory, from small trials to bulk exports

Ideal for distributors and research institutions

We also offer multiple specifications and pricing tiers. Contact us to request a full price list based on your volume requirements.

Usage Instructions & Safety Notice

This product is a research/cosmetic raw material, not a finished pharmaceutical product. It requires proper reconstitution using sterile water or bacteriostatic water before use. Semax is typically administered via nasal spray (when properly formulated) or subcutaneous injection. First-time users should start with a lower dose to assess tolerance. Common side effects are rare but may include mild irritation at the injection site or slight nausea. Not for use by pregnant or nursing women.

What Is Semax?

Semax is a synthetic peptide originally developed in Russia as a neuroprotective and cognitive-enhancing agent. It is a heptapeptide (seven amino acids) that works primarily by increasing levels of brain-derived neurotrophic factor (BDNF) – a protein that supports the survival, growth, and function of neurons. Unlike stimulants such as caffeine or modafinil that force the brain into a high-alert state, Semax gently enhances natural cognitive processes, leading to improved memory, faster learning, better focus, and greater resilience to stress. It has been studied for decades and is known for its safety profile and lack of typical stimulant side effects. XA5 is our 5 mg/vial option at $30, and XA11 is our 10 mg/vial option at $40, both with CAS 80714-61-0 and 99%+ purity.

Why Choose Semax?

Boost your brain without stimulants. Most cognitive enhancers rely on caffeine or similar stimulants that give you a temporary rush followed by an energy crash, jitters, or anxiety. Semax works differently. It supports your brain's natural ability to learn, remember, and focus, leaving you feeling clear and calm rather than wired and tense.

Protect your brain long term. Semax increases BDNF, which is often called "fertilizer for the brain." Higher BDNF levels are associated with better memory, slower cognitive decline, and greater mental resilience as you age. This makes Semax not just a short-term focus tool, but a long-term brain health investment.

Reduce stress and anxiety. Semax has been shown to help the body adapt to physical and mental stress. Users often report feeling more balanced, less overwhelmed, and better able to handle pressure without becoming anxious or fatigued.

Two sizes, one great value. We offer Semax in both 5 mg ($30) and 10 mg ($40) vials. Choose the 5 mg if you want to try a shorter protocol or stay within a budget. Choose the 10 mg for extended use or better value per milligram. Either way, you get the same high purity and quality.

Decades of research behind it. Semax is not a new, untested compound. It has been studied in clinical and research settings for over 20 years, particularly in Russia and Europe. Its safety profile, mechanisms, and effects are well understood by the scientific community.

Clean mental energy. Semax does not keep you awake against your will or make you feel artificially alert. Instead, it clears brain fog, improves information processing, and helps you think more sharply when you need to – without interfering with sleep or causing overstimulation.