As promised, this is an account of my first experience with this peptide. I won't go into the details of the origin of this product as it is widely described on various websites. However, it is important to know that it is a derivative of the well publicised sun tan peptide Melanotan. There is a US patent on it. However, custom peptide laboratories can easily manufacture the product against its chemical formula. Consequently, it is available from labs all over the world, most of which are very coy about their identity. Prior to buying my first vial, I did extensive research on various laboratories and eventually found one in Europe that has hundreds of favourable reviews from users. There's no way to know how authentic those reviews may be but, on the basis of statistical chance, I decided to go ahead with the online purchase. The vial arrived on Friday, with no paperwork and no label on the vial - just a coloured seal. I e-mailed the supplier for reassurance and received a very articulate response with a reasonable explanation of the reasons for that procedure. I decided that I was prepared to take the risk so I continued with the process of diluting the dried crystals in the vial with sterile water and then filling and freezing (-19deg C) nine insulin syringes, leaving the one that I injected at 8pm last night. Within 30minutes, I was aware of a warm facial glow but could see no flushing in the mirror. That feeling went away within 10 minutes and I had no further side effects before bedtime around midnight. At 3.30am, I awoke with a raging erection so I got up and walked around for about 30 minutes and the erection gradually subsided. I took my blood pressure and was disturbed to find that it was 155/90. I went back to bed and had a somewhat disturbed few hours, being aware of frequent erections. I eventually woke up at 8am with a strong erection but decided to try to sleep on as I was feeling exhausted. I again woke at 9am with no erection and my wife and I did a bit of smooching to see if it would come back but without success. That was the end of the matter. I again took my BP and it was 134/80. So, my first experience with PT-141 has been a 'Wow!' followed by disappointment. There are another nine shots in the freezer, so I will have to try it again but I don't have great expectations. The logical first step is that the injection should take place at bedtime to allow for the window of opportunity to occur in the waking hours of the morning.