Men and women can both revive sex and intimacy with PT 141 peptide therapy. PT-141, a peptide hormone also known as bremelanotide, has been shown to be effective in improving sexual function and desire in both women and men. PT-141 is a derivative of the peptide hormone Melanotide II. PT 141 does not work through the cardiovascular system, making it a safer option for people with heart conditions to improve their sexual wellness.