Dulaglutide vs Melanotan II
Overview
Dulaglutide is primarily a weight management & metabolic peptide, while Melanotan II is used for cosmetic & skin.
This page compares Dulaglutide and Melanotan II across their primary use, typical dosing, reported benefits and side effects, and U.S. regulatory status. For the full monograph on either compound — mechanism of action, clinical research, and references — follow the article links.
Side-by-side comparison
| Dulaglutide | Melanotan II | |
|---|---|---|
| Category | Weight Management & Metabolic | Cosmetic & Skin |
| Regulatory status (US) | FDA approved | Not approved — Cat. 2 removed (Apr 2026) |
| Typical dosage | 0.75-4.5 mg | — |
| Frequency | weekly | — |
| Reported benefits | Blood sugar control, weight management, cardiovascular benefits | Skin tanning without UV exposure, increased libido, potential appetite suppression |
| Reported side effects | Nausea, diarrhea, injection site reactions | Nausea, facial flushing, darkening of moles, potential cardiovascular effects |
Key differences
Primary use. Dulaglutide is categorised under Weight Management & Metabolic, while Melanotan II falls under Cosmetic & Skin. Their differing categories mean they are usually chosen for different goals rather than as direct substitutes.
Regulatory status. Dulaglutide: FDA-approved. Melanotan II: not FDA-approved; removed from FDA's Category 2 in April 2026, which is not permission to compound it.
Dosing. Dulaglutide is typically dosed at 0.75-4.5 mg (weekly). Typical dosing for Melanotan II is not catalogued.
Can you stack them?
Some protocols combine peptides, but stacking Dulaglutide and Melanotan II has not been validated for safety or efficacy in controlled trials. Combining compounds can change their effects and risks. Nothing here is medical advice — consult a qualified healthcare provider before starting or combining any protocol.
Frequently asked questions
- What is the difference between Dulaglutide and Melanotan II?
- Dulaglutide is primarily a weight management & metabolic peptide, while Melanotan II is used for cosmetic & skin. Dulaglutide is FDA-approved for one or more indications, whereas Melanotan II is not FDA-approved; removed from FDA's Category 2 in April 2026, which is not permission to compound it.
- What is Dulaglutide used for?
- Weekly GLP-1 (Trulicity).
- What is Melanotan II used for?
- Tanning, libido.
- Can you take Dulaglutide and Melanotan II together?
- Some users combine peptides within a single protocol, but stacking Dulaglutide and Melanotan II has not been established as safe or effective in controlled trials. Neither this comparison nor PeptideSciences101 is medical advice — consult a qualified healthcare provider before combining any compounds.
- Is Dulaglutide or Melanotan II FDA-approved?
- Dulaglutide is FDA-approved for one or more indications. Melanotan II is not FDA-approved; removed from FDA's Category 2 in April 2026, which is not permission to compound it.
Read the full articles
- Dulaglutide — full monograph: mechanism, research, dosing & references
- Melanotan II — full monograph: mechanism, research, dosing & references