Sleep – Advanced

Sleep (Advanced) is supplied as a multi-component laboratory research reference set intended strictly for in-vitro and laboratory research use only. The set assembles six individually documented peptide and small-molecule reference materials under a single catalog entry (SKU: STACK-SLEEP-ADV), enabling side-by-side analytical work, method development, and comparative characterization within a single procurement.

The six components in the Sleep (Advanced) reference set are DSIP, Selank, Epithalon, Pinealon, Glutathione, and Cortagen. DSIP (Delta Sleep-Inducing Peptide) is a nonapeptide of sequence Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu. Selank is a synthetic heptapeptide (Thr-Lys-Pro-Arg-Pro-Gly-Pro) derived from a tuftsin-related motif. Epithalon (also written Epitalon) is the tetrapeptide Ala-Glu-Asp-Gly, while Pinealon is the closely related tripeptide Glu-Asp-Arg. Cortagen is the tetrapeptide Ala-Glu-Asp-Pro. Glutathione is the tripeptide gamma-L-glutamyl-L-cysteinyl-glycine (GSH), notable for its non-standard gamma-peptide linkage at the glutamate residue and a free cysteine thiol that governs its redox chemistry and handling.

Every component is produced by chemical synthesis and supplied as a lyophilized (freeze-dried) powder in its own individually sealed vial, keeping each material physically and analytically discrete. Each vial ships with a lot-specific Certificate of Analysis reporting identity and a purity of not less than 98% by HPLC, alongside supporting characterization data typical for peptide reference materials (for example, mass confirmation and chromatographic profile). Because the short peptides in this set span differing isoelectric points, residue compositions, and functional groups - including the thiol of Glutathione and multiple acidic residues across Epithalon, Pinealon, and Cortagen - they present a useful analytical range for reversed-phase HPLC, LC-MS, and related method work.

Handling in the laboratory should follow standard practice for lyophilized peptide reference materials: storage of unopened vials under the conditions indicated on the Certificate of Analysis, protection from moisture and light, and gravimetric handling on a calibrated balance. Glutathione in particular is thiol-bearing and susceptible to air oxidation, so reconstituted working solutions of that component are typically prepared fresh for analytical use.

PEPTIDE.Power makes no therapeutic, diagnostic, or efficacy claims regarding the Sleep (Advanced) set or any of its individual components, and provides no administration, combination, formulation, or dosing guidance of any kind. These materials are not drugs, supplements, cosmetics, or food, and are not for human or veterinary use, injection, or ingestion. Identity and purity of each component in the Sleep (Advanced) reference set are documented exclusively on the corresponding lot-specific Certificate of Analysis, which is 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.