Compare Research Peptides

Select 2 peptides to compare benefits, dosage, administration routes, mechanisms, and side effect profiles side by side.

Peptide 1

Peptide 2

	Melanotan II MT-II Sign up to track	Melanotan I Afamelanotide Sign up to track
Evidence Grade	CEvidenceGrade CPrimarily animal or in-vitro studies; limited human data	AEvidenceGrade ALarge human randomised controlled trials or FDA/major-authority approved
Regulatory	Research OnlyResearch OnlyNo regulatory approval in any major jurisdiction; for research use only	FDA ApprovedFDA ApprovedApproved by the US Food and Drug Administration for at least one indication
Category	Tanning & Pigmentation	Tanning & Pigmentation
Key Benefits	•Stimulates melanogenesis (tanning) •Tanning without UV exposure (photoprotection) •Appetite suppression •Libido enhancement +1 more	•Skin pigmentation •UV photoprotection •FDA-approved for EPP •Fewer side effects than Melanotan II
Dosage	250-500 mcg mcg	0.5-1 mg mg
Frequency	Daily until desired tan, then 2-3x/week maintenance	1x daily
Administration	Subcutaneous	Subcutaneous
Mechanism	Melanotan II is a synthetic analog of the peptide hormone alpha-melanocyte-stimulating hormone (α-MSH). It stimulates melanogenesis, leading to skin tanning without UV exposure. It also has effects on libido and appetite.	Also known as Afamelanotide, this melanocortin receptor agonist induces skin pigmentation and provides photoprotection. FDA-approved for erythropoietic protoporphyria (EPP) under the brand name Scenesse.
Side Effects / Risks	Not specified	•Nausea •Facial flushing •Injection site reaction
Research Status	Research compound - not FDA approved	Extensive Clinical Data