PinnyPeptide

DSIP vs Epithalon

Side-by-side comparison: effects, dosing ranges, side effects, regulatory status, and reconstitution.

Peptide A

DSIP

Sleep

Endogenous nonapeptide that promotes delta wave sleep and modulates neuroendocrine stress responses.

Peptide B

Epithalon

Longevity

Synthetic pineal tetrapeptide that activates telomerase and modulates melatonin production.

Typical vial

5 mg

Typical dose

100-300 mcg

Half-life

~7-8 minutes (rapidly degraded by aminopeptidases)

FDA status

Not FDA approved for human use. No clinical trials submitted…

Typical vial

10 mg

Typical dose

5000-10000 mcg

Half-life

~30 minutes (short half-life but biological effects persist due to gene expression changes)

FDA status

Not FDA approved for human use. No clinical trials submitted…

DSIP effects

  • Promotes delta wave (deep) sleep without suppressing REM
  • Modulates HPA axis to reduce cortisol during stress
  • Influences pain perception through opioid system interactions
  • May normalize blood pressure in hypertensive states
  • Exhibits neuroprotective properties under oxidative stress

Epithalon effects

  • Activates telomerase enzyme to elongate telomeres
  • Restores melatonin production in the pineal gland
  • Regulates neuroendocrine function and circadian rhythms
  • Reduces incidence of spontaneous tumors in animal models
  • Modulates gene expression patterns associated with aging

DSIP side effects

  • Daytime drowsiness if taken at inappropriate times
  • Mild headache (uncommon)
  • Transient hypotension (rare)
  • Vivid dreams (frequently reported anecdotally)

Epithalon side effects

  • Mild injection site irritation
  • Occasional drowsiness (related to melatonin effects)
  • Rare mild headache
  • Transient changes in sleep patterns

DSIP dosing ranges

Sleep support

100-300 mcg · Once daily, 30-60 minutes before bedtime (SubQ) · 2-4 weeks

Stress and cortisol modulation

100-200 mcg · Once daily (SubQ) · 2-4 weeks

Epithalon dosing ranges

Anti-aging and telomere support

5-10 mg · Once daily (SubQ) · 10-20 days, repeated 1-2 times per year

Full DSIP guide → Full Epithalon guide →

DSIP vs Epithalon — common questions

What is the difference between DSIP and Epithalon?

DSIP: Endogenous nonapeptide that promotes delta wave sleep and modulates neuroendocrine stress responses. Typical dose 100-300 mcg. Epithalon: Synthetic pineal tetrapeptide that activates telomerase and modulates melatonin production. Typical dose 5000-10000 mcg. Both fall under the Sleep and Longevity categories.

Can you stack DSIP and Epithalon?

Stacking DSIP with Epithalon is a protocol-design question best raised with a clinician — it depends on your goal, current bloodwork, and whether both peptides target overlapping mechanisms. Both peptides should be tracked independently with separate injection sites and timing. PinnyPeptide supports multi-peptide stacks with automatic injection site rotation.

Which is dosed more frequently, DSIP or Epithalon?

DSIP is typically dosed: Once daily, 30-60 minutes before bedtime (SubQ) for Sleep support; Once daily (SubQ) for Stress and cortisol modulation. Epithalon is typically dosed: Once daily (SubQ) for Anti-aging and telomere support.

Are DSIP and Epithalon FDA approved?

DSIP: Not FDA approved for human use. No clinical trials submitted for FDA review. Epithalon: Not FDA approved for human use. No clinical trials submitted to the FDA.

Related peptide comparisons

dsip vs orexin-adsip vs orexin-bdsip vs pinealondsip vs pt-141dsip vs selankcortagen vs epithalon

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