PT-141 (Bremelanotide) — The Libido Peptide
PT-141 works on a completely different pathway than the usual approach to intimacy — the brain’s melanocortin system rather than blood flow. That’s why it’s one of the most talked-about peptides in libido and arousal research, studied for desire itself rather than mechanics. Published batch documentation is shown on the COA page when a matching record is available.

Why review PT-141 (Bremelanotide) with Aeternum Life
The listing identifies this item as a laboratory research material.
Identity, format, storage, and package information are shown on the product page.
Destination availability, dispatch details, and tracking are confirmed for the order.
COA records appear by product and batch when a matching record is published.
What is PT-141?
PT-141 (Bremelanotide) is a synthetic peptide that activates melanocortin receptors in the brain — a central pathway tied to sexual desire and arousal. Unlike the more familiar blood-flow approach, PT-141 is studied for acting on the “wanting” side of intimacy.
That central, brain-level mechanism is what makes PT-141 distinct in research on libido and arousal, for both men and women. Aeternum Life supplies it as ultra-high-purity research material with a batch-specific Certificate of Analysis on every order.
Research directions

PT-141 approaches intimacy from the brain, not the bloodstream. Here’s the research focus.
The headline: PT-141 acts on melanocortin receptors, a central pathway tied to desire.
It’s studied for the “wanting” side of intimacy rather than physical mechanics.
Arousal signaling in the brain is a central PT-141 research theme.
It works centrally, which sets it apart from blood-flow-based approaches.
Its central mechanism is researched in both men and women.
For research purposes only. These materials are not drugs or dietary supplements and are not intended to diagnose, treat, cure or prevent any disease.
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PT-141 (Bremelanotide) documentation
- Published product specification
- Reported purity and test date when available
- Batch number shown on matching records
- Laboratory and verification details only when supplied
The COA page shows the batch documentation currently published. Missing fields are left blank rather than inferred.
Handling & Storage
Guidance for handling PT-141 (Bremelanotide) as a laboratory research material.
Store lyophilized PT-141 (Bremelanotide) cold and protected from light, sealed and dry until use.
Handle PT-141 (Bremelanotide) according to standard laboratory practice for research materials.
Published batch documentation is linked when a matching record is available.
PT-141 (Bremelanotide) is supplied strictly for laboratory and research use. Not for human or veterinary consumption; no administration or dosing guidance is provided.
Specifications
- Name
- PT-141 (Bremelanotide)
- CAS
- 189691-06-3
- Appearance
- White lyophilized powder
- Size
- 10 mg per vial
- Purity
- ≥ 99% (HPLC, see COA)
- Storage
- Store at 2–8°C, protect from light
For research use. Not intended to diagnose, treat, cure or prevent any disease.
Frequently asked questions
What is PT-141 studied for?
It’s studied in libido and arousal research through the brain’s melanocortin system. We share these as research directions, not medical claims.
How is it different from the usual approach?
PT-141 acts centrally (on desire) rather than on blood flow, which is why it’s studied as a distinct pathway.
Is PT-141 (Bremelanotide) for human use?
No. Aeternum Life supplies PT-141 (Bremelanotide) strictly as a research-grade material for laboratory research. It is not sold for human or veterinary consumption.
Is a COA available for PT-141 (Bremelanotide)?
Published COA records are available by product and batch when a matching record exists. Laboratory and verification details appear only when stated in that record.

About Aeternum Life
Aeternum Life Limited publishes clearly labeled laboratory research materials and accessories, with specifications and available batch documentation.
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PT-141 (Bremelanotide) is part of the Aeternum Life research catalog. Review its intended-use status, specifications, and any currently published batch record before ordering.
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