Semax (25mg) – Receptor-Grade Research Peptide

Semax (25mg) is a synthetic polypeptide analog derived from the adrenocorticotropic hormone fragment ACTH (4-7), a peptide naturally secreted by the anterior pituitary gland. Unlike full-length ACTH, this fragment has been reported in research literature to lack classical hormonal activity while potentially exerting selective actions within the central nervous system.

At Core Peptide, Semax (25mg) is supplied as a receptor-grade research peptide, manufactured to strict quality standards and distributed exclusively for laboratory and research use in the United States.

Background and Structural Design of Semax

Naturally occurring neuropeptides often exhibit rapid degradation when exposed to biological fluids due to enzymatic activity. To address this limitation, researchers have synthesized peptide analogs that preserve functional characteristics while offering greater stability and resistance to enzymatic breakdown.

Semax was developed by modifying the Met-Glu-His-Phe sequence of ACTH (4-7) through the addition of a Pro-Gly-Pro (PGP) sequence at the C-terminal end. This structural extension is believed to enhance peptide stability and may improve its interaction with biological membranes.

The incorporation of the PGP motif is also hypothesized to influence the peptide’s ability to interact with the blood–brain barrier (BBB). Researchers suggest that this modification may increase lipophilicity and support transport via passive diffusion or receptor-mediated mechanisms, allowing Semax to remain relevant in central nervous system research models.

Mechanistic Overview (Research Context)

Semax has been widely studied for its neuropeptide-modulating properties. Research suggests that Semax may inhibit specific enzymes involved in the degradation of enkephalins, endogenous opioid peptides that play roles in pain perception, stress response, and neurochemical signaling.

By influencing enkephalin stability, Semax may indirectly interact with interconnected neurotransmitter systems, including dopamine and serotonin pathways. These interactions highlight the complexity of Semax’s proposed mechanisms and explain why it remains an active subject of investigation in neuroscience research.

Additionally, studies suggest that Semax (25mg) may influence the expression of genes involved in immune regulation, chemokine signaling, and vascular function.

Chemical Characteristics

• Peptide Name: Semax

• Amount: 25mg

• Molecular Formula: C₃₉H₅₄N₁₀O₁₀S

• Molecular Weight: 854.99 g/mol

• Other Names: ACTH (4-7) PGP, HY-P1146

• Form: Lyophilized powder

• Grade: Receptor Grade

Each vial of Semax (25mg) from Core Peptide is quality-tested to ensure consistency and suitability for research applications.

Research Applications of Semax (25mg)

Semax and Nootropic Research

Early studies examining ACTH analogs have evaluated Semax for its potential influence on serotonergic metabolism. Increased levels of 5-hydroxyindoleacetic acid (5-HIAA), a serotonin metabolite, were observed in experimental models, suggesting possible modulation of serotonin-related pathways.

This has positioned Semax as a compound of interest in laboratory research focused on cognition, focus, and memory-associated signaling.

Semax and Anxiety-Related Research Models

Research involving neonatal and adolescent animal models has explored Semax’s interaction with stress-related behaviors. Studies suggest that Semax exposure may influence monoamine balance, potentially stabilizing neurotransmitter systems disrupted by external stressors.

These findings support the use of Semax (25mg) in controlled behavioral and neurodevelopmental research.

Semax and Vascular Research

Semax has also been investigated in vascular and cardiovascular research models, particularly following experimentally induced myocardial injury. Researchers observed changes in ventricular remodeling and vascular signaling parameters, indicating potential relevance in studies of post-ischemic tissue adaptation.

Semax and Neuroprotection Studies

Clinical and preclinical investigations have examined Semax in the context of ischemic and neuroprotective research models. EEG-based analyses have suggested changes in neurological recovery patterns following Semax exposure, making it a subject of interest in neuroregeneration research.

Semax and Gene Expression

Gene-expression studies suggest that Semax may influence transcriptional pathways related to immune signaling, chemokine activity, and vascular regulation. These findings support its inclusion in molecular biology and genomics-focused research protocols.

Receptor-Grade Quality at Core Peptide

The receptor-grade designation reflects a higher purity standard suitable for receptor-binding, signaling, and gene-expression studies where experimental accuracy is critical.

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Storage and Handling (Laboratory Use)

To maintain stability:

• Store lyophilized Semax at -20°C

• Reconstitute with sterile, research-grade solvents

• Avoid repeated freeze-thaw cycles

Always follow institutional laboratory handling guidelines.

External Scientific References

• Kolomin T. et al., Synthetic peptides based on natural regulatory peptides, Neuroscience & Medicine, 2013
  http://dx.doi.org/10.4236/nm.2013.44035

• Ashmarin IP et al., ACTH-derived neuropeptides and brain function, Progress in Neurobiology

These peer-reviewed publications provide foundational insight into Semax-related research.

Why Choose Core Peptide for Semax (25mg)?

 USA-focused fulfillment
 Receptor-grade purity
 Reliable sourcing and batch consistency

Explore Semax (25mg) and other advanced research peptides at
https://corepeptide.us