Melanotan has been associated with a range of reported adverse effects, including nausea, flushing, and changes in blood pressure
For the 8mg and 12mg steps, you would need to either use a higher concentration or draw from two vials
(1) Vladimir N Anisimov, Vladimir Kh Khavinson, Irina G Popovich, Mark A Zabezhinski, et al (2003) Effect of Epitalon on biomarkers of aging, life span and spontaneous tumor incidence in female Swiss-derived SHR mice Biogerontology, 2003, Volume 4 (Issue 4), Pages 193-202
Reading active ingredients rather than brand names is the entire protection
The consistency of positive results across different systems is one of the compound's most compelling features