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. Every batch is independently third-party tested for purity and ships with its own certificate of analysis.
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- ✓ Third-party COA included
- ✓ Free worldwide shipping over $99

Why source PT-141 (Bremelanotide) from Aeternum Life
Every PT-141 (Bremelanotide) batch is verified by an independent laboratory.
HPLC-tested identity and purity on every PT-141 (Bremelanotide) lot.
Sourced and handled to strict, defined specifications.
Discreet, tracked delivery.
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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Get our full usage & reconstitution guides — PT-141 (Bremelanotide) included — plus members-only pricing, restock alerts and one-on-one support, free on our Telegram.
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How PT-141 (Bremelanotide) is tested
- Certificate of Analysis (COA) for every PT-141 (Bremelanotide) batch
- HPLC purity & identity
- Mass-spectrometry confirmed
- Batch-tested and fully traceable
Every PT-141 (Bremelanotide) lot is released only after independent verification, so what you receive matches its stated identity and purity.
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.
Each PT-141 (Bremelanotide) batch ships with a batch-specific COA for identity and purity.
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. Reconstitution and handling guides are shared in our Telegram community.
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)?
Yes — every PT-141 (Bremelanotide) batch ships with a batch-specific Certificate of Analysis covering identity and purity.

About Aeternum Life
Aeternum Life is a Japan-inspired peptide brand built on purity, transparency and rigorous testing — the same standard behind the PT-141 (Bremelanotide) on this page. Every product is presented by its composition and backed by batch-specific documentation.
Explore the full Aeternum Life range
PT-141 (Bremelanotide) is one of more than thirty research-grade materials we supply — each one backed by a batch-specific COA and independent testing.
- ✓ Cryptocurrency settlement only
- ✓ Third-party COA included
- ✓ Free worldwide shipping over $99
