Cognitive
Cognitive & Neuropeptide Research Compounds
Much of the research behind this category was carried out in Russia and Eastern Europe, and a meaningful portion of the primary literature is only partially indexed in English-language databases. That shapes what can honestly be said about several of these compounds, and the product pages reflect it rather than papering over it.
Compound identity is the first thing to get right. Semax is a synthetic analogue of the ACTH(4-10) fragment. Selank derives from tuftsin. Their N-acetylated forms are separate molecules with modified stability, not alternate names for the originals. Noopept is a dipeptide-derived small molecule and dihexa is an angiotensin IV analogue — neither is a peptide, though both are routinely sold as one.
Where the indexed record is thin, the product page reports how thin, including the number of primary papers cited and the years they span. Overstating a sparse literature is the easiest way to be wrong on a page like this.
Every lot is independently assayed before release, with purity and measured content both published and matched to the lot code on the unit. Supplied strictly for laboratory research, shipped domestically within the United States.
In this category: Semax · Selank · N-Acetyl Semax · Cerebrolysin · Noopept
What to check before buying cognitive compounds
Purity is half the number. A purity figure tells you what fraction of the powder in the vial is the compound on the label — it tells you nothing about how much powder is in the vial. A lot can assay at 99.8% purity and still be short against its labelled content.
Both numbers are published for every batch here: purity from HPLC, and measured mass against expected content. Match the batch code printed on the vial to the certificate before you rely on either.
Cognitive research peptides — common questions
- What is Semax and how does N-Acetyl Semax differ?
- Semax is a synthetic peptide derived from a fragment of ACTH, developed and studied largely in Russian research. The N-acetylated form carries an acetyl group on the N-terminus, described in the literature as increasing resistance to enzymatic degradation. They are certified and supplied as two separate compounds with separate lots.
- Is Cerebrolysin a single peptide?
- No — it is a mixture of low-molecular-weight peptides and free amino acids derived from porcine brain tissue. That changes what an analytical certificate can say about it: a purity figure defined for one molecule does not transfer to a mixture, and the certificate reports what was actually assayed rather than a number borrowed from a different kind of product.
- Are all the compounds in this category peptides?
- No, and the product pages say which are not. Noopept is a small molecule derived from a dipeptide rather than a peptide proper. It appears here because the published research sits alongside the peptide compounds in the same models — the category reflects the literature, not the molecular class.
- What is published for each lot here?
- Lot code, HPLC purity, measured content against the labelled amount, the issuing laboratory and its test date, with the full report linked from the lot code. Older lots stay published, so a vial bought months ago still resolves to the report that was run on it.
