Melanotan 1 (MT-1)

🔹 What is Melanotan 1 (MT-1)?

Class: Synthetic melanocortin peptide analog. Mechanism:

• Binds to melanocortin receptors (primarily MC1R) in the skin.
• Stimulates melanin production, leading to skin pigmentation and tanning.
• May also influence satiety and libido via central melanocortin pathways.

Primary focus:

• Skin pigmentation and UV-independent tanning.
• Potential support for appetite regulation and libido enhancement.

Molecular profile: MW 1646.845 Daltons. Sequence: Ac-Ser-Tyr-Ser-Nle-Glu-His-D-Phe-Arg-Trp-Gly-Lys-Pro-Val-NH2.

Important distinction from MT-2: MT-1 does not cross the blood-brain barrier. Because of this, it does not produce the central effects seen with Melanotan II (like increased libido/sexual desire)—its action is limited to melanogenesis/tanning, photoprotection, and immune support (upregulating regulatory T-cells and improving the TH1/TH17 ratio). Any libido or appetite claims for MT-1 should be read with that limitation in mind.

FDA-approved identity: MT-1 is, in fact, the active ingredient in afamelanotide, marketed as Scenesse—an FDA-approved drug for preventing phototoxicity in erythropoietic protoporphyria (EPP), a rare blood disorder. The approved form is a subcutaneous implant delivering 16mg over roughly 2 months. This is a separate clinical/regulatory context from the research/tanning use described below.

---

🔹 Oral Dosage: Not effective; degraded in the GI tract. Only subcutaneous injection is practical.

---

🔹 Injectable / Subcutaneous Dosage (most common) Range:

• Typical dosing: 0.25–1 mg per injection, 3–5x weekly.

Frequency:

• Administered subcutaneously, often alternating injection sites.

Rationale: Microgram-to-milligram doses are sufficient for MC1R activation and melanin production.

---

🔹 Cycle Length Common cycle length: 4–12 weeks for progressive tanning or skin adaptation. Off-cycle: 2–4 weeks breaks may be used to prevent receptor desensitization or allow melanin stabilization.

---

🔹 Optimal Dosing Window

• Morning or early afternoon preferred to coordinate with UV exposure (if used).
• Avoid late-evening dosing in sensitive individuals; anecdotal reports suggest occasional insomnia in rare cases.

---

✅ Educational Integration Example

• Example protocol: 0.5 mg subcutaneous injection 3x per week for 8 weeks.
• Tanning-specific detail: ~200mcg SubQ daily during week 1, then adjust dose/frequency based on pigment response—individual duration to reach desired tan varies.
• Pair with: Controlled sun exposure or UV-free tanning, adequate hydration, and skin care for optimal pigmentation results.

---

🔹 Stacking Strategy (Educational / Complementary) Since MT-1 primarily targets melanocortin receptors for pigmentation, complementary stacks focus on skin health, photoprotection, and potential metabolic modulation: 🔸 Skin Health & Regeneration:

• GH secretagogues (CJC-1295/Ipamorelin), GHK-Cu, BPC-157: Support connective tissue and skin regeneration.
• Antioxidants (Vitamin C, E, CoQ10): Protect against UV-related oxidative stress.

🔸 Metabolic / Appetite Support:

• GLP-1 agonists or L-Carnitine: May complement melanocortin-mediated satiety or energy balance pathways.

Rationale: MT-1 enhances pigmentation and potentially modulates satiety; stacking emphasizes skin protection, repair, and metabolic support without redundant melanocortin activation.

Disclaimer: Do not rely on any dosing information provided, this is for educational and research only. Always double and triple check alternative references for education. Please consult with healthcare provider for your specific dosing and protocol if applicable.