You can find alot of info here -> _http://melanotan.org/cgi-bin/yabb/YaBB.pl
7 days is not long enough for it to work well, if you inject to much you will get nauseous and not sleep well, be sure to take anti-nausea medicine, you will also get horny as hell.
Here is an example from that forum:
First, the non-metric version:
A = total mg of melanotan II in vial
B = your weight in lbs
C = (0.0025 * B) = mg per injection
D = A / C = total injections
E = D * 0.3-0.5 = amount of diluant to add to vial
For metric users, apply the kg to lbs conversion ...
B = 2.205 * your weight in kg
Once you know the number of "total injections" that can be obtained from the given amount of peptide in the vial ... you will then be able to fill the vial with diluant based on that number. You do that by multiplying the total injections by the amount of diluant you wish to use per injection. My preference is anywhere from 0.3cc to 0.5cc or 30-50 mark on your syringe.
Here's an example ...
A = 10mg in vial
B = 200 lbs
C = 0.0025 * 200 = 0.5mg per injection
D = 10mg / 0.5mg = 20 injections
E = 20 * 0.3cc = 6cc diluant
Therefore, 6cc of diluant must be added to the vial containing 10mg of peptide. One should then draw up 0.3cc (or to the 30 mark of the syringe) per each injection ... totaling 20 injections at the recommended concentration of peptide.