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PT-141 10 mg vialFor research

PT-141 10 mg

Bremelanotide: a peptide studied for sexual desire that acts on receptors in the brain.

Purity 99.719% verified by Janoshik. Lot PT05261410K.
$310,000COP
In stock · ready to ship
Choose a strength
1
Analyzed by Janoshik · Lot PT05261410KPurity 99.719% · Measured content 10.35 mg (103% of the amount declared) · Endotoxins 1.657 EU/vial · Report #223349View certificateHow to verify it
Bacteriostatic water and alcohol wipes included
Included freeOne 3 mL vial of bacteriostatic water per peptide vial, plus alcohol wipes, in discreet packaging.
Free shipping anywhere in Colombia. Ships the same day if you pay before 4 p.m. (Monday to Friday) or noon (Saturday), Bogotá time.
Secure payment withWompi
CardsPSENequiDaviplataBancolombiaUSDT TRC-20
Preparation: mix with 3 mL of bacteriostatic water (3.33 mg per mL). Watch video
Questions? Read the FAQFor research use only. Not for human or veterinary use.

Summary

What is PT-141?

PT-141 is bremelanotide, a cyclic peptide of seven amino acids. There's an approved medicine containing bremelanotide for low sexual desire in premenopausal women.

What is it researched for?

It's studied for sexual desire and arousal, in women and in men.

How does it work?

It activates melanocortin receptors in the brain, which play a part in desire. It works on the desire signal, not on blood flow like sildenafil.

Technical data

Names in the literature
PT-141 · bremelanotide
Strength
10 mg per vial
Form
Lyophilized powder in a sealed vial
CAS number
189691-06-3
Before reconstitution
Fridge or freezer, away from light and moisture
After reconstitution
2 °C to 8 °C (36–46 °F)
Use
For research use only

Quality

Verified by Janoshik

The analysis of the lot we're selling today, done by Janoshik, an independent lab.

Janoshik certificate of analysis, report 223349

PT-141 10 mg · Janoshik

Current lotLot PT05261410K · Report 223349
Purity (HPLC)
99.719%
Endotoxins
1.657 EU/vial
Report 223350
Measured content
10.35 mg
103% of the 10 mg declared
Analysis date
Aug 21, 2026

Janoshik analyzed a sample from lot PT05261410K. The result applies to that sample, not to every vial in the lot.

How to verify it yourself

  1. Open the certificate and find the report number and the verification details.
  2. Look up that report on Janoshik's website.
  3. Check that the product, lot and results match this page.

Preparation

3 mLof bacteriostatic water
for the 10 mg vial
If you already know how to reconstitute, that's all you need.
ConcentrationOn a U-100 syringe3.33 mg per mL30 units = 1 mg

Reconstituting means mixing the powder in the vial with bacteriostatic water to get a solution that's ready to use. The peptide comes as a powder because it keeps better that way.

Video: how to reconstitute PT-141 10 mg
2:04 · Video for 3 mL of water · 3 mL syringe for the water

How to reconstitute

The same 6 steps as the video. Tap an image to see it full size.

  1. 1. What you need. Have everything on the “What you need” list at hand.
  2. 2. Get ready. Wash your hands well and work on a clean surface. Let the vial and the water reach room temperature.
  3. 3. Clean the stoppers. Remove the plastic caps. Wipe the stoppers with alcohol and let them dry.
  4. 4. Draw the water. Draw 3 mL of bacteriostatic water. Read the measurement at the plunger edge closest to the needle.
  5. 5. Add the water slowly. The vial is vacuum sealed and pulls the water in: hold the plunger right where it enters the syringe. Let the water run down the inside wall of the vial, never straight onto the powder. Dispose of the needle in a rigid container.
  6. 6. Dissolve completely. Don't shake the vial. Swirl it gently or let it rest; it usually takes 30 seconds to 3 minutes. It's ready when there are no particles and it's completely clear.

Afterward: label the vial with the date you reconstituted it and keep it in the fridge (see Storage).

What you need

  • Peptide vial
  • Bacteriostatic water
  • 3 mL syringe for mixing
  • 0.5 mL U-100 insulin syringes
  • 70% alcohol wipes
  • Rigid container for used needles

Reading the amounts

mg · amount of peptide
mL · volume of liquid
mg/mL · resulting concentration

Storage

Once reconstituted, it needs cold and darkness.

2 °C – 8 °C
Always in the fridge. Take it out only to draw your dose and put it back right away.
Never freeze it
Once reconstituted, freezing damages it. Also avoid the fridge door, where the temperature changes the most.
4 to 6 weeks
Use it within that time after reconstituting. Protect it from light: keep it in its box or a dark container.
Before reconstitution: it keeps best in the fridge or freezer, away from light and moisture.
If you travel: carry it in an insulated bag with a cold pack, without direct contact with the ice.

Dosing

Only when you need it, not daily

It's used only when you need it, not every day. Start with the low dose and go up only if you don't notice an effect: nausea is more common at higher doses.

  • About 45 minutes before sexual activity.
  • Don't use more than one dose in 24 hours or more than 8 a month.
Choose a dose to see it on the syringe
Reconstitute with 3 mL of bacteriostatic water · 3.33 mg/mL (30 units = 1 mg)
Low dose · 500 mcgDraw up to 15 units500 mcg of PT-141, only when you need it · 0.15 mL10 mg vial with 3 mL of water · 0.5 mL U-100 insulin syringe
15 u
0.5 mL U-100 insulin syringe filled to 15 units
Read the mark at the plunger edge closest to the needle.

Practical tips

About the dose

Start with the low dose

Nausea depends on the dose. Try the low dose more than once before moving to the medium one.

Plan ahead

The effect usually starts 45 to 60 minutes after the injection and lasts several hours.

Leave time between doses

One dose in 24 hours at most. Write down the date and the dose to find the one that works for you.

If side effects show up

Nausea

It's the most common. Forums suggest eating something light beforehand and lying down for a few minutes after the injection. It usually eases with later doses.

Facial flushing

Brief warmth or redness. It's common and goes away on its own.

Headache

Drink water and rest. If it keeps happening, use a lower dose.

Blood pressure

Bremelanotide can raise it temporarily. Keep that in mind if you use other products for sexual function.

Frequently asked questions

Is it used every day?

No. It's used only when you need it, about 45 minutes beforehand. In the studies it was used at most once in 24 hours and 8 times a month.

Does it work in men?

There are no large trials in men. The medicine is approved for women; in men there are small studies, in erectile dysfunction. It acts on desire, not only on erection.

Which dose should I choose?

Start with the low dose (500 mcg). If you don't notice an effect after using it a couple of times, move to the medium dose; the high dose is for people who tolerate the medium one well.

How is it different from sildenafil?

Sildenafil increases blood flow. Bremelanotide acts in the brain, on desire. That's why it's described as a different mechanism.

Where can I check the lab results before I buy?

In Quality, on this same page, you can open the report for the strength and lot we sell.

What's included, and how much is shipping?

Every peptide vial comes with one 3 mL vial of bacteriostatic water, plus alcohol wipes; the reconstitution guide is on this page. Shipping is free anywhere in Colombia, in discreet packaging.

When will my order ship?

If your payment is confirmed before 4 p.m. (Monday to Friday) or noon (Saturday), we ship it that same day. After that time, and on Sundays and Colombian holidays, we ship it the next business day. Bogotá time.

What payment methods can I use?

Cards, PSE, Nequi, Daviplata and Bancolombia through Wompi, or USDT on the TRC-20 network. You'll see every option at checkout.

Can't find your answer? Visit Help.

What do the studies say?

Bremelanotide has phase 3 trials in women, used before sexual activity.

Sexual desire

Obstetrics & Gynecology · 2019 · 1,267 women · 24 weeks

Premenopausal women with low desire used 1.75 mg as needed, before sexual activity.

Compared with placebo, desire went up and related distress went down. Nausea, flushing and headache were more frequent with bremelanotide.

How to read this data

  • These are group results; they don't predict what will happen to any one person.
  • The large trials were in women; in men the studies are smaller.
  • The studies used their own preparations, not KAILAB vials.

Scientific sources

Last reviewed: Oct 22, 2026 · KAILAB team

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Purity, measured content and endotoxins, explained with a real report.
See it in Quality →
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The current reports, with their lot and the link to verify them.
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When your order ships, how to pay and what to do if something goes wrong.
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PT-141 10 mg
$310,000 COP · Free shipping · Ships today if you pay before 4 p.m. (Mon–Fri)
KAILABEspañol0

PT-141 10 mg

Bremelanotide: a peptide studied for sexual desire that acts on receptors in the brain.

Purity 99.719% verified by Janoshik. Lot PT05261410K.
For research1 / 4
$310,000COP
In stock · ready to ship
Choose a strength
1
Analyzed by Janoshik · Lot PT05261410KPurity 99.719% · 10.35 mg measured (103% of the amount declared) · Endotoxins 1.657 EU/vialView certificate
Bacteriostatic water and alcohol wipes included
Included freeOne 3 mL vial of bacteriostatic water per peptide vial, plus alcohol wipes.
Free shipping. Ships the same day if you pay before 4 p.m. (Mon–Fri) or noon (Sat).
Secure payment withWompi
CardsPSENequiDaviplataBancolombiaUSDT TRC-20
Preparation: mix with 3 mL of bacteriostatic water (3.33 mg/mL).

For research use only. Not for human or veterinary use.

Summary

What is PT-141?

PT-141 is bremelanotide, a cyclic peptide of seven amino acids. There's an approved medicine containing bremelanotide for low sexual desire in premenopausal women.

What is it researched for?

It's studied for sexual desire and arousal, in women and in men.

How does it work?

It activates melanocortin receptors in the brain, which play a part in desire. It works on the desire signal, not on blood flow like sildenafil.

Quality

Verified by Janoshik
Janoshik certificate 223349
Janoshik · Lot PT05261410K
Report 223349 · Aug 21, 2026
Current lot
Purity (HPLC)
99.719%
Endotoxins
1.657 EU/vial
Measured content
10.35 mg
View certificateVerify at Janoshik ↗

Preparation

3 mLof bacteriostatic water
for the 10 mg vial
If you already know how to reconstitute, that's all you need.
Concentration 3.33 mg/mL30 u = 1 mg
How to reconstitute PT-141 10 mg
2:04 · Video for 3 mL of water · 3 mL syringe

The 6 steps

Swipe to see more
  1. 1. What you need. The vial, bacteriostatic water, a syringe for mixing, U-100 insulin syringes, 70% alcohol wipes and a rigid container for the needles.
  2. 2. Get ready. Wash your hands well and work on a clean surface. Let the vial and the water reach room temperature.
  3. 3. Clean the stoppers. Remove the plastic caps. Wipe the stoppers with alcohol and let them dry.
  4. 4. Draw the water. Draw 3 mL of bacteriostatic water. Read the measurement at the plunger edge closest to the needle.
  5. 5. Add the water slowly. The vial is vacuum sealed and pulls the water in: hold the plunger right where it enters the syringe. Let the water run down the inside wall of the vial, never straight onto the powder. Dispose of the needle in a rigid container.
  6. 6. Dissolve completely. Don't shake the vial. Swirl it gently or let it rest; it usually takes 30 seconds to 3 minutes. It's ready when there are no particles and it's completely clear.

Storage

2–8 °C
Always in the fridge once reconstituted.
Never freeze it
Not in the fridge door either.
4 to 6 weeks
Use it within that time after reconstituting.
Away from light
In its box or a dark container.

Dosing

Only when you need it, not daily

It's used only when you need it, not every day. Start with the low dose and go up only if you don't notice an effect: nausea is more common at higher doses.

  • About 45 minutes before sexual activity.
  • Don't use more than one dose in 24 hours or more than 8 a month.
Choose a dose to see it on the syringe
Low dose · 500 mcg
0.5 mL U-100 insulin syringe filled to 15 units
Draw up to15 units500 mcg · 0.15 mL
only when you need it
10 mg vial with 3 mL of water. 0.5 mL U-100 insulin syringe.

Practical tips

About the dose

Start with the low dose

Nausea depends on the dose. Try the low dose more than once before moving to the medium one.

Plan ahead

The effect usually starts 45 to 60 minutes after the injection and lasts several hours.

Leave time between doses

One dose in 24 hours at most. Write down the date and the dose to find the one that works for you.

If side effects show up

Nausea

It's the most common. Forums suggest eating something light beforehand and lying down for a few minutes after the injection. It usually eases with later doses.

Facial flushing

Brief warmth or redness. It's common and goes away on its own.

Headache

Drink water and rest. If it keeps happening, use a lower dose.

Blood pressure

Bremelanotide can raise it temporarily. Keep that in mind if you use other products for sexual function.

Frequently asked questions

Is it used every day?

No. It's used only when you need it, about 45 minutes beforehand. In the studies it was used at most once in 24 hours and 8 times a month.

Does it work in men?

There are no large trials in men. The medicine is approved for women; in men there are small studies, in erectile dysfunction. It acts on desire, not only on erection.

Which dose should I choose?

Start with the low dose (500 mcg). If you don't notice an effect after using it a couple of times, move to the medium dose; the high dose is for people who tolerate the medium one well.

How is it different from sildenafil?

Sildenafil increases blood flow. Bremelanotide acts in the brain, on desire. That's why it's described as a different mechanism.

Where can I check the lab results before I buy?

In Quality, on this same page, you can open the report for the strength and lot we sell.

What's included, and how much is shipping?

Every peptide vial comes with one 3 mL vial of bacteriostatic water, plus alcohol wipes; the reconstitution guide is on this page. Shipping is free anywhere in Colombia, in discreet packaging.

When will my order ship?

If your payment is confirmed before 4 p.m. (Monday to Friday) or noon (Saturday), we ship it that same day. After that time, and on Sundays and Colombian holidays, we ship it the next business day. Bogotá time.

What payment methods can I use?

Cards, PSE, Nequi, Daviplata and Bancolombia through Wompi, or USDT on the TRC-20 network. You'll see every option at checkout.

What do the studies say?

Bremelanotide has phase 3 trials in women, used before sexual activity.

Sexual desire · Obstetrics & Gynecology · 2019 · 1,267 women · 24 weeks

Premenopausal women with low desire used 1.75 mg as needed, before sexual activity.

Compared with placebo, desire went up and related distress went down. Nausea, flushing and headache were more frequent with bremelanotide.

See the study · Obstet Gynecol, 2019 ↗

Scientific sources

Last reviewed: Oct 22, 2026 · KAILAB team

PT-141 · 10 mg
$310,000