Reconstitution calculator / Melanotan II
Melanotan II reconstitution calculator
The arithmetic below is the same for any compound. What changes is the vial in front of you, so read its label and enter those numbers rather than numbers from anywhere else.
Worth knowing before you calculate anything. Melanotan II rates ★☆☆☆☆ on our evidence scale, and its safety profile is poorly characterised.
A calculator will return a tidy number for any compound you give it. That number says nothing about whether the compound works, whether the dose is sensible, or whether the product in the vial is what the label claims.
Where the dose figure should come from
This page does not supply one. For Melanotan II the honest position is set by the evidence:
The book reports dose figures in four labelled bands, so you can always see whether a number comes from an approved label, from a published trial, from what circulates without trial support, or from nothing at all. That labelling matters more than the number.
If you have a certificate of analysis
Check whether it reports a net peptide content lower than the labelled weight. Peptides are usually supplied as a salt and hold water, so a vial labelled 5 mg can contain less than 5 mg of the peptide itself. Where that figure is given, it is the one to enter above.
The certificate describes what is in the vial. The evidence rating at the top of this page describes whether Melanotan II has been shown to work in humans. Neither answers the other's question.How to read a certificate of analysis.
What this page will not do
It will not tell you what to take or whether to take it, and it is not medical advice. Sterile technique, storage and the provenance of the vial matter as much as the arithmetic. What is actually known about storage.
About Melanotan II
Melanotan II is a synthetic analogue of alpha-melanocyte stimulating hormone (α-MSH), the hormone that triggers pigment production. It was developed in university research and did not progress to approval. It is not approved anywhere, and it is widely used for tanning without sun exposure.
Educational reference, not medical advice, and not a recommendation to use Melanotan II. Edition 1.0. Regulatory information as at 16 September 2026. Calculator behaviour last reviewed 12 October 2026.