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Specimen Atlas of Research Peptides30 plates · MIT
Side-by-side · Research reference

EpitalonvsMelanotan-II

Side-by-side comparison across mechanism, dosage, evidence, side effects, administration, and stack synergies. Citations on every claim where available.

AHuman-MechanisticDraft8/37 cited
BPhase 1Reviewed9/43 cited
Epitalon
Pineal bioregulator · Telomerase activator
5–10 mgPer cycle doseKhavinson 2003
HumanMechanisticKhavinson 2003
HoursHalf-life (est)
SQ or IM · Abdomen · Daily for 10–20 days
Melanotan-II
MC1R + MC4R agonist · Tanning + sexual response
0.25–1.0 mgPer doseDorr 1996
Phase 1Evidence levelDorr 1996
~1 hrHalf-life
SQ · Abdomen · Loading 5–7 days, then maintenance

01Mechanism of Action

Parameter
Epitalon
Melanotan-II
Primary target
Telomerase activity (proposed); pineal melatonin axis modulationKhavinson 2003
MC1R (skin) + MC3R + MC4R (CNS sexual / appetite)Dorr 1996
Pathway
Activation of telomerase reverse transcriptase (hTERT) in somatic cells; pineal-axis modulation supports endogenous melatoninKhavinson 2003
MC1R agonism → melanocyte tyrosinase → eumelanin synthesis. MC4R → autonomic sexual arousal centresDorr 1996Simerly 2023
Downstream effect
Telomere elongation, improved sleep architecture, reported lifespan extension in aged miceKhavinson 2003
Skin darkening, photo-protection, increased sexual desire / spontaneous erectionDorr 1996
Feedback intact?
Origin
Synthetic 4-AA peptide derived from epithalamin (a natural pineal extract)Khavinson 2003
Cyclic 7-AA modified α-MSH analog; designed at University of ArizonaDorr 1996
Antibody development

02Dosage Protocols

Parameter
Epitalon
Melanotan-II
Standard dose
5–10 mg / day for 10–20 days, 1–2× per yearKhavinson 2003
Anecdotal community protocol. Russian clinical literature uses similar cycling.
Frequency
Once daily during a cycle
Daily during loading; 1–2× per week maintenance
Lower / starter dose
2.5 mg / day
0.1 mg / day
Conservative starter — assess tolerability for nausea.
Evidence basis
In-vitro telomerase + Russian clinical trialsKhavinson 2003
Phase 1 + anecdotalDorr 1996
Duration
10–20 day cycles, 1–2× per year
8–12 weeks per cycle
Reconstitution
Bacteriostatic water
Bacteriostatic water; protect from light
Timing
Pre-sleep preferred (pineal alignment)
Evening preferred (24h tan-development cycle)
Half-life
Hours (estimated)
~1 hour plasma; effects on melanocytes persist days
Loading phase
0.25–0.5 mg/day SQ × 5–7 daysDorr 1996
Builds up to visible tan.
Maintenance
0.5–1.0 mg 1–2×/week
After visible tan develops; supports with UV exposure.

04Side Effects & Safety

Parameter
Epitalon
Melanotan-II
Injection site reaction
Mild irritation
Sleep architecture
Improved subjective sleep quality (anecdotal)
Cancer risk
Theoretical via telomerase activation in pre-malignant cells
Long-term safety
Limited Western RCT data
Pregnancy / OB
Avoid
Contraindicated
Antibody formation
Not reported
Nausea
Common, especially loading phase
Flushing
Common transient
Spontaneous erection
Common in men — MC4R cross-effectDorr 1996
Increased mole / freckle pigmentation
Existing moles darken; new lesions possible
Melanoma risk
Theoretical concern — increased melanocyte activity; CAUTION in melanoma history
Appetite suppression
MC4R-mediated; mild
Absolute Contraindications
Epitalon
  • ·Pregnancy / breastfeeding
  • ·Active malignancy or pre-malignant state
Melanotan-II
  • ·History of melanoma or atypical mole syndrome
  • ·Pregnancy / breastfeeding
  • ·Active uncontrolled hypertension
Relative Contraindications
Epitalon
  • ·Family history of cancer
Melanotan-II
  • ·Significant freckling / dysplastic nevus
  • ·Personal or family melanoma history

05Administration Protocol

Parameter
Epitalon
Melanotan-II
1. Reconstitution
Add 1–2 mL bacteriostatic water to 10 mg vial → 5–10 mg/mL.
Add 2 mL bacteriostatic water to 10 mg vial → 5 mg/mL = 500 mcg per 0.1 mL. Light-protected.
2. Injection site
SQ — abdomen preferred. Rotate sites.
SQ — abdomen. Rotate sites.
3. Timing
Pre-sleep preferred to align with pineal axis.
Evening preferred. UV exposure (sunlight or tanning bed) helps develop tan.
4. Storage
Lyophilised: room temp, light-protected. Reconstituted: refrigerate ≤30 days.
Lyophilised: refrigerate, light-protected. Reconstituted: refrigerate ≤30 days.
5. Needle
29–31G, 4–8 mm insulin syringe.
29–31G insulin syringe.