Melanotan-1 vs Melanotan-2: Research Comparison
Melanotan-1 and Melanotan-2 are both melanocortin research peptides, but they differ in structure and receptor profile. Here is how they compare in the research literature.
Melanotan-1 and Melanotan-2 are both synthetic analogs studied within the melanocortin system, and they are often confused because of their similar names. In the research literature, though, they are distinct compounds with different structures and receptor profiles.
Melanotan-1 (afamelanotide)
Melanotan-1, also known as afamelanotide, is a linear analog of α-MSH. In the research context it is generally described as more selective in its melanocortin-receptor activity, and it is the more structurally straightforward of the two.
Melanotan-2
Melanotan-2 is a cyclic, more truncated analog. It is described in the literature as a broader, less selective melanocortin-receptor agonist, which is the main mechanistic distinction researchers draw between the two.
Key differences at a glance
- Structure: Melanotan-1 is linear; Melanotan-2 is cyclic and shorter
- Receptor profile: Melanotan-1 is described as more selective; Melanotan-2 as broader
- Both are studied as α-MSH-related melanocortin analogs in vitro
Both Melanotan-1 and Melanotan-2 are supplied as lyophilized powders, third-party tested to 98%+ by HPLC with a COA, so the specific analog and its purity can be confirmed before research use.
This article is provided for laboratory and in-vitro research context only. Pulse Peptide Labs products are not for human consumption, diagnostic, therapeutic, or medical use, and nothing here is medical advice.
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