Description

Eterna Peptides presents premium-grade Semax and Selank dual-action lyophilized powder, an ultimate-tier neurological research matrix pairing two of the most celebrated synthetic neuropeptides in modern neurobiology. Combining 10mg of the neurogenic ACTH(4-7) analogue Semax with 10mg of the enkephalin-preserving Tuftsin analogue Selank inside a single precisely standardized vial, this advanced formulation serves as the definitive investigative tool for tracking concurrent neuro-protective cascades, rapid anxiolytic pathway activation, and hippocampal neurotrophin expression without sedative or hypnotic complications.

### Advanced 20mg Synergistic Neurological Profile
Each carefully calibrated research vial delivers an exact, uniform distribution of high-purity regulatory heptapeptides:
* **Semax (10mg – Met-Glu-His-Phe-Pro-Gly-Pro):** A stabilized synthetic analogue of the endogenous adrenocorticotropic hormone fragment ACTH(4-7). Engineered with a protective Pro-Gly-Pro tripeptide sequence at its C-terminus, it heavily resists enzymatic cleavage by central peptidases to maximize its bioavailable lifespan.
* **Selank (10mg – Thr-Lys-Pro-Arg-Pro-Gly-Pro):** A stabilized synthetic analogue of the endogenous immunomodulatory peptide Tuftsin. It features an identical Pro-Gly-Pro terminal modification, granting it superior proteolytic resistance within central nervous system matrices.

### Mechanism of Action
The Semax / Selank matrix targets complementary neurochemical and neurotrophic checkpoints to explore advanced synaptic plasticity, emotional resilience, and cognitive longevity:
* **BDNF/NGF Axis Upregulation:** Semax triggers a profound surge in the transcription and synthesis of Brain-Derived Neurotrophic Factor ($BDNF$) and Nerve Growth Factor ($NGF$) within the hippocampus. This drives active spinogenesis, neurite outgrowth, and long-term potentiation ($LTP$) to study memory consolidation kinetics.
* **Enkephalin Preservation & Stress Mitigation:** Concurrently, Selank operates as a potent inhibitor of enkephalin-degrading enzymes (specifically carboxypeptidase N). By preventing this breakdown, it sustains elevated concentrations of endogenous enkephalins, reinforcing natural opioid-mediated stress-extinction and anxiolytic pathways.
* **Non-Sedating GABAergic Tuning:** Selank provides a highly specialized allosteric modulation of the $GABA_A$ receptor complex, enhancing inhibitory neurotransmission. Crucially, it achieves this anxiolytic state without inducing the typical motor-impairing, hypnotic, or sedating side profiles associated with traditional benzodiazepine agonists.
* **Monoaminergic Homeostasis & Neuroprotection:** Together, the compounds stabilize dopamine and serotonin turnover rates in the prefrontal cortex while downregulating genes responsible for pro-inflammatory cytokine expression. This dual action shields delicate cortical layouts against calcium-dependent glutamate excitotoxicity and ischemic shock boundaries.

### Research Applications
In preclinical and in vitro laboratory models, Semax / Selank 10mg / 10mg vials are utilized to investigate:
* High-velocity anxiety-extinction signaling, fear-conditioned response moderation, and emotional stress resilience.
* Upregulated hippocampal neurotrophin synthesis, dendritic spine remodeling, and synaptic plasticity during neuro-fatigue protocols.
* Neuro-protective defense mechanics under simulated ischemic stroke, optic trauma, and excitotoxic stress models.
* Neuropeptide-DNA binding kinetics, blood-brain barrier transport dynamics, and transcriptomic shifts in central nervous tissue.

Our dual-action vials undergo strict laboratory stabilization, vacuum-drying, and high-purity purification guidelines to ensure absolute peptide chain integrity, rapid reconstitution kinetics, and dependable experimental reproducibility.

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*Disclaimer: This product is sold strictly for laboratory research and development use only. It is not intended for human consumption, diagnostic, or therapeutic purposes.*