PT141 – Bremelanotide

PT-141 is bremelanotide, a melanocortin receptor agonist that acts on the central nervous system rather than on blood flow directly. It works on melanocortin receptors in the brain linked to sexual desire and arousal, which is a different mechanism to PDE5 drugs like sildenafil. It is not a hormone or a steroid, and it is used on-demand rather than run as a daily or weekly cycle.

As a guide and not medical advice, most first-time users start low, around 0.25 mg subcutaneously, and only increase toward 0.5 mg on a later occasion if the first dose was well tolerated. Doses are generally spaced at least 72 hours apart to judge response and avoid tolerance building up. Reconstitution and exact volumes should be worked out carefully with an insulin syringe, since this product ships as a 10 mg vial.

Nausea is the most commonly reported effect, particularly at higher doses, along with facial flushing and headache. Some users notice a transient rise in blood pressure after dosing. Anyone with existing hypertension should check their baseline blood pressure before trying it and monitor afterward.

No. PT-141 is not suppressive and does not require post-cycle therapy or any mandatory support compound. It is generally used on its own, since stacking it with other compounds on a first run makes it harder to judge your own response and tolerance.

Both are melanocortin peptides, but PT-141 was developed specifically as a spin-off of Melanotan II with the tanning effect reduced and the sexual arousal effect kept as the main action. Melanotan II users often report tanning alongside libido effects, while PT-141 is used more narrowly for desire and arousal. They are still related compounds, so the nausea and flushing side effect profile is similar.

Yes, every vial we sell is authentic Syncom Labs stock and each box carries its own verification check-code so you can confirm it against the manufacturer. Orders are dispatched from the UK on Royal Mail Tracked 24 in plain, unbranded packaging, with same-day dispatch if you order before midday on a working day. Most UK customers see their parcel land within 1 to 2 working days.