Melanotan II vs Syn-Ake
A detailed comparison to help you understand the differences and choose the right peptide for your research goals.
Melanotan II
Melanotan II is a synthetic peptide analog of α-MSH with broader receptor activity than Melanotan I. It produces tanning effects and has notable effects on sexual function and appetite suppression.
Full details →Syn-Ake
Syn-Ake (Dipeptide Diaminobutyroyl Benzylamide Diacetate) is a synthetic tripeptide that mimics the effect of Waglerin-1, a peptide found in Temple Viper venom. It's used in cosmetics for anti-wrinkle effects.
Full details →Side-by-Side Comparison
| Aspect | Melanotan II | Syn-Ake |
|---|---|---|
| Dose Range | 250 mcg–1 mg | 200 mcg–500 mcg |
| Frequency | 1x daily | 2x daily |
| Cycle Length | 1–2 weeks | 4–8 weeks |
| Route | subcutaneous | topical |
| Mechanism | Non-selective melanocortin receptor agonist affecting MC1R (tanning), MC3R and MC4R (sexual function and appetite). This broader activity explains its multiple effects beyond tanning. | Acts as a competitive antagonist at the nicotinic acetylcholine receptor, reducing muscle contractions similar to Botox but through a different mechanism. Provides muscle-relaxing effects when applied topically. |
| Typical Dosage | Typical protocols: 0.25-0.5mg daily during loading phase for 1-2 weeks, then 0.5-1mg before UV exposure for maintenance. Start low to assess tolerance. | Topical: 1-4% concentration in serums or creams. Applied 1-2 times daily to target areas like forehead and crow's feet. |
| Administration | Subcutaneous injection. Usually combined with UV exposure for tanning effects. Nasal spray formulations exist but have lower bioavailability. | Topical application only. Should be applied to clean skin. Often combined with other anti-aging peptides for synergistic effects. |
| Side Effects | Nausea (common initially), facial flushing, spontaneous erections, increased libido, appetite suppression, and mole darkening. | Generally well-tolerated topically. Rare reports of mild skin irritation or sensitivity. |
| Best For |
What They Have in Common
Melanotan II, Syn-Ake are both commonly used for:
Key Differences
Unique to Melanotan II:
Which Has Stronger Evidence?
- Skin Health & Aesthetics: Melanotan II has stronger research support.
| Goal | Melanotan II | Syn-Ake |
|---|---|---|
| Skin Health & Aesthetics | high | medium |
Key Studies
Melanotan II
- Melanotan II nasal spray: a possible risk factor for oral mucosal malignant melanoma?
International journal of oral and maxillofacial surgery, 2025
- Melanotan II User Experience: A Qualitative Study of Online Discussion Forums.
Dermatology (Basel, Switzerland), 2021
- Melanotan II, a melanocortin agonist, partially rescues the impaired thermogenic capacity of pituitary adenylate cyclase-activating polypeptide deficient mice.
Experimental physiology, 2021
Syn-Ake
- Anti-aging activity of Syn-Ake peptide by in silico approaches and in vitro tests.
Journal of biomolecular structure & dynamics, 2024
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