The Selank / Semax Blend combines two synthetic heptapeptides — Selank and Semax — supplied together (10 mg of each) as a lyophilized research chemical for in vitro laboratory investigation. Third-party lab tested for purity.
Peptides.GG is a chemical supplier and is not a compounding pharmacy under 503A or 503B. Statements have not been evaluated by the US FDA. Products are not intended to diagnose, treat, cure, or prevent any disease. For research use only — not for human consumption.
Selank / Semax Blend
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The Selank / Semax Blend combines two synthetic heptapeptides — Selank and Semax — supplied together (10 mg of each) as a lyophilized research chemical for in vitro laboratory investigation. Third-party lab tested for purity.
Peptides.GG is a chemical supplier and is not a compounding pharmacy under 503A or 503B. Statements have not been evaluated by the US FDA. Products are not intended to diagnose, treat, cure, or prevent any disease. For research use only — not for human consumption.
Frequently Asked Questions About Selank / Semax Blend
What is the Selank / Semax Blend?
It is a single lyophilized preparation combining two synthetic heptapeptides — Selank and Semax — at 10 mg of each. Both are short peptides derived from endogenous human sequences and are studied as research tools in neuroscience and behavioral models. Supplied for laboratory use only, not for human consumption.
What is Selank?
Selank is a synthetic heptapeptide (Thr-Lys-Pro-Arg-Pro-Gly-Pro) derived from the immune peptide tuftsin with an added Pro-Gly-Pro stabilizing sequence. It is studied in the context of anxiolytic- and nootropic-related research pathways. CAS 129954-34-3.
What is Semax?
Semax is a synthetic heptapeptide (Met-Glu-His-Phe-Pro-Gly-Pro) based on the ACTH(4-10) fragment, stabilized with a Pro-Gly-Pro extension. It is studied for neuroprotective- and nootropic-related activity in laboratory models. CAS 80714-61-0.
What are the molecular profiles of the two peptides?
Selank (free base): C₃₃H₅₇N₁₁O₉, average MW 751.9 Da, CAS 129954-34-3, sequence TKPRPGP. Semax (free peptide): C₃₇H₅₁N₉O₁₀S, average MW 813.9 Da, CAS 80714-61-0, sequence MEHFPGP. Salt forms (e.g. acetate) weigh more per mole than the free peptide.
How much of each peptide is in the blend?
The blend is supplied as 10 mg of Selank and 10 mg of Semax, co-lyophilized in a single vial.
How is the blend stored and handled?
The blend is a lyophilized powder soluble in water and standard aqueous buffers, kept sealed, cold, and protected from light and moisture until use. Each batch is third-party tested with a Certificate of Analysis.
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Research Overview
This blend pairs two of the most widely studied synthetic peptide research compounds — Selank and Semax — in a single lyophilized preparation containing 10 mg of each. Both are short synthetic heptapeptides derived from endogenous human sequences and stabilized with a C-terminal proline-glycine-proline (Pro-Gly-Pro) extension. Both are investigated in neuroscience and behavioral-research models, and supplying them together provides a convenient research tool for laboratories examining the two peptides in parallel.
Selank
Selank is a synthetic heptapeptide (Thr-Lys-Pro-Arg-Pro-Gly-Pro) derived from the immunomodulatory peptide tuftsin, to which a Pro-Gly-Pro sequence was added to improve stability. In research it is examined in the context of anxiolytic- and nootropic-related pathways and neuroimmune signaling. It is also offered on its own as Selank.
Semax
Semax is a synthetic heptapeptide (Met-Glu-His-Phe-Pro-Gly-Pro) based on the ACTH(4-10) fragment, likewise stabilized with a C-terminal Pro-Gly-Pro. It is studied for neuroprotective- and nootropic-related activity in laboratory models. Related research compounds in the catalog include N-Acetyl Semax Amidate, Noopept, and P21.
Molecular Profiles
Selank (free base): sequence Thr-Lys-Pro-Arg-Pro-Gly-Pro, molecular formula C₃₃H₅₇N₁₁O₉, average molecular weight 751.9 Da, CAS 129954-34-3. Semax (free peptide): sequence Met-Glu-His-Phe-Pro-Gly-Pro, molecular formula C₃₇H₅₁N₉O₁₀S, average molecular weight 813.9 Da, CAS 80714-61-0. Both values describe the free peptides; acetate or other salt forms carry additional mass.
Laboratory Handling
The blend is supplied as a co-lyophilized powder, soluble in water and standard aqueous buffers. It is kept sealed, cold, and protected from light and moisture until use. Each batch is third-party tested with a Certificate of Analysis.
