Not every research peptide fits neatly into a "repair" or "metabolic" category. DSIP, Epitalon, and SS-31 sit at the intersection of sleep regulation, cellular aging, and mitochondrial health — three compounds studied for distinct mechanisms that frequently intersect in recovery-focused research.

DSIP (Delta Sleep-Inducing Peptide)

DSIP is a naturally occurring neuropeptide first identified in relation to delta-wave sleep activity. Despite the name, its research scope has expanded well beyond sleep alone — studies examine its role in circadian rhythm regulation and stress-response signaling more broadly, making it a common reference compound in neuroendocrine research.

Epitalon

Epitalon is a synthetic tetrapeptide studied primarily in relation to pineal gland function and telomerase activity. Research interest here sits squarely in the aging-biology space — telomerase regulation is one of the more actively studied mechanisms in cellular senescence research, and Epitalon's proposed role in that pathway is what drives its inclusion in longevity-adjacent protocols.

SS-31

SS-31 is a mitochondrial-targeting peptide, studied for its localization to the inner mitochondrial membrane and proposed role in stabilizing mitochondrial function under stress conditions. It's frequently referenced in research examining oxidative stress and cellular energy failure — a mechanistic angle distinct from both DSIP and Epitalon, but relevant to the same broader recovery and healthy-aging research space.

Why these show up together

Sleep regulation, telomere biology, and mitochondrial stability are mechanistically distinct, but they converge on the same downstream research questions around recovery and cellular resilience — which is why protocols examining one often reference the other two.

Sourcing

All three ship with third-party lab verification. As with any multi-compound protocol, confirm the COA lot number matches your vial for each individual compound before use.