Specialty
COA· 98.0%
Bremelanotide
PT-141
PT-141 (Bremelanotide) — melanocortin-receptor-agonist research peptide, widely referenced in sexual-function research models. Vivaprime prefilled pen.
15 mg / 3 ml pen
€199€220€13.27/mg
Crypto price — save ~10% vs cardvs a typical 5 mg lyophilized powder vial
This pen
15 mg
€13.27/mg · ready to use
To match in powder
3 × 5 mg vials
+ BAC water, syringes, per-dose math
The pen ships sealed and pre-dosed. Dial, inject, store refrigerated. No reconstitution, no transfer loss, no volume calculation.
Why a pen instead of a vial?
- No reconstitution. Skip bac water, syringes, swirl-and-wait.
- 0.1 mg dose resolution. Mechanical counter, not syringe-barrel guessing.
- Sealed single cartridge. No rubber septum re-entries, no exposed plunger.
- Package-to-dose < 60 s. Pull cap, dial, record. No prep workflow.
Full specification
15 mg / 3 ml pen
€13.27/mg
Cost / mg
- Total mass
- 15 mg
- Volume
- 3 ml
- Concentration
- 5.00 mg / ml
- Format
- Prefilled penReady to use — no reconstitution, no BAC water, no syringe calculation
- Dose increment
- 0.1 mgDial-click precision
- Purity (HPLC)
- 98.0%
- Batch on file
- 25060426JAN13PT1
- Tested
- 1/13/2026
- Storage
- 2–8 °C refrigeratedDo not freeze
- Manufacturing
- EU cGMP facilityReleased against pre-registered specs
All products are intended for laboratory research use only. Not for human or animal consumption, diagnostic, or therapeutic use.
Research primer · 10 min read
PT-141 (Bremelanotide) — the melanocortin-receptor agonist, explained
PT-141 is a 7-amino-acid peptide that activates melanocortin receptors in the central nervous system. A research-context primer on the molecule, the melanocortin system, and the published literature.
Read the primer →Common questions
Quick answers about PT-141
- Is PT-141 pre-mixed and ready to use, or do I need to reconstitute it?
- PT-141 ships as a sealed prefilled pen. No reconstitution, no bacteriostatic water, no syringe draw. Each pen is pre-dosed with dial-click increments at the factory under EU cGMP release specifications.
- How is PT-141 tested and what's on the Certificate of Analysis?
- Every batch is released against a written specification. Identity is confirmed by HPLC-MS plus Amino Acid Analysis; purity is measured by reverse-phase HPLC; residual solvents per ICH Q3C; endotoxin (LAL) per USP. The latest published batch (25060426JAN13PT1) tested at 98.0% purity. Full COA history is available on our lab results page.
- How should PT-141 be stored?
- Refrigerate 2–8 °C. Protect from light. Do not freeze.
- How is PT-141 shipped?
- Cold-chain shipped from within the EU with ice packs and insulated packaging. Orders ship within 1 business day and most EU addresses arrive in 2–4 business days. Orders over €300 ship free.
- Is PT-141 sold for human use?
- No. PT-141 is sold strictly for in vitro research and laboratory use by qualified professionals. It is not intended for human consumption, therapeutic, or diagnostic use. This research-use framing is enforced in all product materials and operational documentation.
- How many doses does a 15 mg / 3 ml pen pen of PT-141 deliver?
- The exact number of doses depends on the research protocol's per-dose quantity. Pens dial in 0.1 mg increments and total mass per pen is shown on the product page. Divide total mass by your planned per-dose mass to estimate doses.
Verified
HPLC tested
Identity + purity, every batch
Verified
EU cGMP site
Pharma-grade manufacturing
Verified
2–8 °C cold chain
Temp-logged US transit
Verified
Plain outer
No return logo, no product name