Brain – Start

Brain (Start) is supplied as a multi-component laboratory research reference set intended for in-vitro and laboratory research use only. The set (catalog STACK-BRAIN-START) groups three individually documented synthetic peptide reference materials under a single SKU: Semax, Selank, and P21 (P021). Each is presented as a lyophilized (freeze-dried) powder in its own sealed vial, accompanied by a lot-specific Certificate of Analysis reporting identity and a chromatographic purity of not less than 98% by HPLC.

The three components in Brain (Start) are structurally distinct research peptides with independent analytical profiles. Semax is a short synthetic sequence (Met-Glu-His-Phe-Pro-Gly-Pro) derived from a fragment of the adrenocorticotropic hormone family, useful as an analytical standard for reversed-phase HPLC method development and mass-spectrometric identity work. Selank is a heptapeptide (Thr-Lys-Pro-Arg-Pro-Gly-Pro) based on a tuftsin-derived sequence, characterized by a proline-rich backbone that provides a distinctive retention and fragmentation profile suitable for LC-MS reference use. P21 (P021), also cataloged as P021, is a small peptidomimetic reference compound investigated in the neurotrophic research literature and included here for comparative characterization alongside the two oligopeptides.

Presenting the three materials together as Brain (Start) allows laboratories to bracket a comparable retention-time window, cross-check calibration curves, and align internal identity libraries (HPLC, UV, and MS) across related but chemically independent standards without co-mingling them in a single vial. Because each component is filled, sealed, and documented separately, per-vial traceability, chain-of-custody, and lot-level Certificate of Analysis records remain intact for each peptide.

PEPTIDE.Power makes no therapeutic, diagnostic, or efficacy claims regarding Brain (Start) or any of its components, and provides no administration, combination, reconstitution, or dosing guidance. These materials are synthetic laboratory reference substances; they are not drugs, dietary supplements, cosmetics, or food, and are not intended for human or veterinary use, injection, or ingestion. Identity, purity, and lot-specific analytical data for Semax, Selank, and P21 (P021) are documented on each component's Certificate of Analysis, available on request.

Supplied as a set of individually sealed vials of lyophilized (freeze-dried) powder, one per component. A research reference set - not a finished product and not a delivery device. Net contents per component are shown in the product options.

Store each sealed lyophilized component at -20 C, protected from light and moisture. After reconstitution for laboratory use, keep cold and use promptly. Handle per standard laboratory practice; Safety Data Sheets (SDS) are available on request.

This set is sold to qualified laboratory and research buyers for lawful research use only. The components are not drugs, supplements, cosmetics, or food, and are not for human or veterinary use, injection, or ingestion. By purchasing, you confirm you are 21 or older and will use these materials only for lawful laboratory research.