PinnyPeptide

Epithalon vs MOTS-c

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

Peptide A

Epithalon

Longevity

Synthetic pineal tetrapeptide that activates telomerase and modulates melatonin production.

Peptide B

MOTS-c

Longevity

Mitochondrial-derived peptide that mimics exercise and regulates metabolic homeostasis.

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…

Typical vial

5 mg

Typical dose

5000-10000 mcg

Half-life

Not well characterized in humans (estimated hours based on peptide size)

FDA status

Not FDA approved. Investigational compound with no clinical …

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

MOTS-c effects

  • Activates AMPK pathway to enhance metabolic homeostasis
  • Improves insulin sensitivity and glucose uptake
  • Promotes fatty acid oxidation and reduces fat accumulation
  • Mimics exercise-induced metabolic adaptations
  • Preserves skeletal muscle function during aging
  • Enhances mitochondrial biogenesis and function

Epithalon side effects

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

MOTS-c side effects

  • Injection site reactions (redness, mild pain)
  • Transient changes in blood glucose levels
  • Mild fatigue during initial dosing
  • Limited human safety data available

Epithalon dosing ranges

Anti-aging and telomere support

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

MOTS-c dosing ranges

Metabolic optimization and longevity

5-10 mg · Three to five times weekly (SubQ) · 4-8 weeks

Full Epithalon guide → Full MOTS-c guide →

Epithalon vs MOTS-c — common questions

What is the difference between Epithalon and MOTS-c?

Epithalon: Synthetic pineal tetrapeptide that activates telomerase and modulates melatonin production. Typical dose 5000-10000 mcg. MOTS-c: Mitochondrial-derived peptide that mimics exercise and regulates metabolic homeostasis. Typical dose 5000-10000 mcg. Both fall under the Longevity category.

Can you stack Epithalon and MOTS-c?

Stacking Epithalon with MOTS-c 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, Epithalon or MOTS-c?

Epithalon is typically dosed: Once daily (SubQ) for Anti-aging and telomere support. MOTS-c is typically dosed: Three to five times weekly (SubQ) for Metabolic optimization and longevity.

Are Epithalon and MOTS-c FDA approved?

Epithalon: Not FDA approved for human use. No clinical trials submitted to the FDA. MOTS-c: Not FDA approved. Investigational compound with no clinical trials completed for regulatory submission.

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