How it works.
Delta sleep-inducing peptide (DSIP) is an endogenous nonapeptide first identified in the cerebral venous blood of rabbits during electrically induced slow-wave sleep. Its precise receptor target remains unresolved, but published research documents effects on delta-wave sleep patterns, modulation of the hypothalamic-pituitary-adrenal axis, and interactions with several neurotransmitter and neuroendocrine systems. It crosses the blood-brain barrier and is studied as a regulatory rather than a sedative peptide.
Verified buyer notes.
Initials only — every quote is verified against an order record. We don’t ghost-write reviews.
“COA matched what we ran in-house. Powder reconstituted clean, no haze. Did exactly what we needed it to.”
“Switched after two bad lots from a previous source. Three orders in, zero issues.”
“Asked support a purity question and got the raw HPLC trace back within the hour. That transparency is why we reorder.”
The shared signature.
A foundational redox cofactor studied for its role in mitochondrial function, sirtuin signaling, and cellular energy metabolism.
A 16-amino-acid mitochondrial-derived peptide encoded within the 12S rRNA region of mitochondrial DNA, studied for its role in AMPK signaling, metabolic homeostasis, and the cellular stress response.
Sold outA cell-permeable mitochondria-targeting tetrapeptide studied for its association with the inner-membrane phospholipid cardiolipin and its effects on mitochondrial bioenergetics.
Sold outA cyclic heptapeptide analog of α-MSH studied as a broad melanocortin-receptor agonist, with documented effects on melanogenesis pathways in research models.