Cycle-length evidence
Melanotan I cycle length: what human studies ran
Not approved — research use only
Short answer: there is no established Melanotan I cycle length, and we found no human studies that report one.
Treatment and follow-up in human studies
No human study durations are recorded.
What has not been tested
- On-and-off schedules or breaks between courses.
- Repeated courses and long-term exposure beyond the periods listed.
- Melanotan I combined with other compounds, unless a study above says so.
Frequently asked questions
Is there an established Melanotan I cycle length?
No. We found no human studies that report a treatment duration for Melanotan I.
What is the longest human study of Melanotan I?
None is recorded.
Do study durations tell me how long to use something?
No. A study duration is how long investigators administered a compound to selected participants under monitoring. It is not a recommended course, and a break between courses has not been tested for any compound on this site that is not approved.
References
- SCENESSE (afamelanotide) implant, for subcutaneous use. Prescribing information, CLINUVEL Inc. (SPL published May 13, 2026) DailyMed (FDA label). 2026
- Drugs@FDA application record for SCENESSE (afamelanotide), NDA 210797, original approval 8 October 2019 openFDA / Drugs@FDA. 2026
- Scenesse (afamelanotide): EPAR, medicine overview (authorised 22 December 2014 under exceptional circumstances) European Medicines Agency. 2026
- Afamelanotide for Erythropoietic Protoporphyria N Engl J Med. 2015