Libido not what it was?

One pen in the range is researched for desire and arousal: PT-141 (bremelanotide), a melanocortin agonist licensed in the United States for low desire in premenopausal women and not authorised elsewhere. The pen is a research product, not that medicine. The Peptide Checkup checks whether the trial population and your history line up — and says when a clinician is the right first call.

Start the 7-minute Checkup See the pen

01 — Where the Checkup usually lands

One pen is researched for sexual health.

PT-141 has randomised trial data for desire in premenopausal women and is licensed for that in the United States only. Outside that population the evidence is thin, and the Checkup says so rather than stretching the trial to fit. Your answers decide — including whether to buy at all.

Illustration — photo to follow
PT-14110 mg / 3 mLLibido and arousal goals — the melanocortin agonist licensed for HSDD in the US.£195Details
Why only one
The range is 24 pens and the matcher does not pad the list. If your answers rule this one out, the Checkup ends at no pen rather than the next-nearest thing.
Your answers decide — including whether to buy at all.

02 — What the Checkup checks

Four things it checks for sexual health.

7 minutes of structured questions — categories, not essays — run through a deterministic rules engine against the evidence and regulatory database, then scored against the range.

01Whether your situation resembles the population PT-141 was trialled in — desire in premenopausal women — or falls outside it, where the evidence is thin
02Cardiovascular history and blood-pressure medicines: PT-141 raises blood pressure transiently and is not for uncontrolled hypertension
03Interactions with PDE5 inhibitors, nitrates and other medicines a clinician would ask about
04The regulatory position — a licensed medicine in one country, a research product here — and the licensed options a clinician may raise instead

Research-use pens

Sold for research use only. Not a medicine and not authorised for human consumption. Purchasers must be 18+ and confirm intended use at checkout.

Peptide Checkup

The Peptide Checkup provides educational information and a structured summary of published research and regulatory status. It is not medical advice, does not diagnose or treat any condition, and does not replace a consultation with a qualified healthcare professional.

Sexual health

Take the 7-minute Checkup for sexual health.

Start the Checkup How it works

Not medical advice · Research-use labelling applies · 18+ only · It can say no

≈7 min

Start the Checkup