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Specimen Atlas of Research Peptides81 plates · MIT
Side-by-side · Research reference

Melanotan-IIvsOvagen

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

APhase 1HUMAN-REVIEWED9/43 cited
BTheoreticalHUMAN-REVIEWED2/42 cited
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
Ovagen
Khavinson Bioregulator · Ovarian
OvarianTarget tissue
Di/Tri-peptidePeptide length
AnimalEvidence tier
Oral / SQ · Protocol varies

01Mechanism of Action

Parameter
Melanotan-II
Ovagen
Primary target
MC1R (skin) + MC3R + MC4R (CNS sexual / appetite)Dorr 1996
Ovarian tissue chromatin complexes
Pathway
MC1R agonism → melanocyte tyrosinase → eumelanin synthesis. MC4R → autonomic sexual arousal centresDorr 1996Simerly 2023
Tissue-specific peptide → Nuclear chromatin binding → Gene expression modulation → Cellular differentiation
Downstream effect
Skin darkening, photo-protection, increased sexual desire / spontaneous erectionDorr 1996
Proposed ovarian functional support, fertility regulation, hormonal homeostasis restoration
Feedback intact?
Presumed physiological — Khavinson peptides described as regulatory, not replacement
Origin
Cyclic 7-AA modified α-MSH analog; designed at University of ArizonaDorr 1996
Extracted from bovine/porcine ovarian tissue; short synthetic peptides (2–4 amino acids)
Antibody development

02Dosage Protocols

Parameter
Melanotan-II
Ovagen
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.
Frequency
Daily during loading; 1–2× per week maintenance
Once daily or cyclical (10–20 days per month)
Cyclical protocols common in Khavinson bioregulator tradition.
Lower / starter dose
0.1 mg / day
Conservative starter — assess tolerability for nausea.
Evidence basis
Phase 1 + anecdotalDorr 1996
Theoretical / Russian-tradition
Duration
8–12 weeks per cycle
4–12 weeks per cycle
Khavinson protocols typically 1–3 months; repeat cycles as needed.
Reconstitution
Bacteriostatic water; protect from light
Timing
Evening preferred (24h tan-development cycle)
Half-life
~1 hour plasma; effects on melanocytes persist days
Standard dose
10–20 mg / day (oral) or 1–2 mg SQ
Extrapolated from Khavinson-school protocols; no ovagen-specific PubMed dose studies.
Route
Oral (capsule) or subcutaneous
Oral absorption assumed for short peptides; SQ route mirrors other Khavinson bioregulators.

04Side Effects & Safety

Parameter
Melanotan-II
Ovagen
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
Pregnancy / OB
Contraindicated
Reported adverse events
None documented in indexed literature
Theoretical hormonal effects
Ovarian stimulation — monitor for estrogen-sensitive conditions
Injection site reaction
Possible mild erythema (SQ route)
Long-term safety
Unknown — no PubMed-indexed RCTs
Absolute Contraindications
Melanotan-II
  • ·History of melanoma or atypical mole syndrome
  • ·Pregnancy / breastfeeding
  • ·Active uncontrolled hypertension
Ovagen
  • ·Active hormone-sensitive malignancy (breast, ovarian, endometrial)
  • ·Pregnancy
Relative Contraindications
Melanotan-II
  • ·Significant freckling / dysplastic nevus
  • ·Personal or family melanoma history
Ovagen
  • ·History of estrogen-sensitive tumors (monitor)
  • ·Polycystic ovary syndrome (PCOS) — theoretical ovarian hyperstimulation risk
  • ·Endometriosis or fibroids (estrogen-responsive conditions)

05Administration Protocol

Parameter
Melanotan-II
Ovagen
1. Reconstitution
Add 2 mL bacteriostatic water to 10 mg vial → 5 mg/mL = 500 mcg per 0.1 mL. Light-protected.
Typical dose: 10–20 mg once daily. Capsule form — taken on empty stomach, 20–30 min before meals. Khavinson tradition suggests morning administration.
2. Injection site
SQ — abdomen. Rotate sites.
1–2 mg per injection. Reconstitute lyophilised powder with sterile water if required. Inject into abdomen or thigh; rotate sites.
3. Timing
Evening preferred. UV exposure (sunlight or tanning bed) helps develop tan.
Common pattern: 10–20 days on, 10 days off. Aligns with menstrual cycle phases in some protocols. Repeat cycles for 2–3 months, then assess.
4. Storage
Lyophilised: refrigerate, light-protected. Reconstituted: refrigerate ≤30 days.
Lyophilised: room temperature, light-protected. Reconstituted: refrigerate 2–8 °C, use within 7–14 days.
5. Needle
29–31G insulin syringe.