For Research Use OnlySelank + Semax Nasal Spray
A combined preparation of Selank and Semax, two short synthetic peptides that share a design strategy: each is an analogue of a different endogenous fragment, extended with a proline-glycine-proline sequence that resists enzymatic clearance. Supplied at $55. The combination is a packaging convenience rather than a studied formulation — no work has examined the two together, so claims about joint action are extrapolation from two separate literatures, both of which are substantially Russian-language and difficult to assess at second hand. Ratios are fixed and cannot be varied. Research use only.
Transparency
Certificate of Analysis
Every batch independently verified by third-party laboratories.
Selank + Semax Nasal Spray COA
All Proxiva Peptides products are independently tested by accredited third-party laboratories. Results are batch-specific and provided for research transparency only. This product is not approved for human use.
Lab Verified
Every Dose, Independently Tested
Verified by Vanguard Laboratory — always ≥99.5% purity, tested 7×.
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Frequently Asked Questions
Everything you need to know about this product and your order.
Scientific References
Explore the published research literature on Selank. We link directly to independent, primary sources — we don't summarize or interpret findings. For research use only.
Links open external databases (pubmed.ncbi.nlm.nih.gov · clinicaltrials.gov). Proxiva Peptides is not affiliated with these sources. For research use only — not medical advice.
Certificate of Analysis
Selank + Semax Nasal Spray · ≥99.4% purity (HPLC)