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PT-141
Libido & intimacy

PT-141

Injector pen15 mg

What users report

  • Desire, in women as in men

  • At the moment you choose

    at least 45 min before (label)
  • The brain, not blood flow

Everything about this peptide
Read more +

People choose it for desire, in women as in men, with a molecule approved in the United States since 2019 after two phase 3 trials.

What it is: A 7-amino-acid cyclic peptide that activates the MC4R receptor in the hypothalamus: it acts on desire in the brain, not on blood flow.

Documented in humans

Approved in the United States since 2019 after two phase 3 trials in 1,267 women, PT-141 (bremelanotide) acts on desire itself, in the brain.

This cyclic seven-amino-acid peptide activates the MC4R receptor in the hypothalamus.

Why people choose it:

  • Desire in women: in two phase 3 trials, desire increased and the distress linked to its loss decreased, significantly against placebo.
  • Response in men: in phase 2, erection and desire increased against placebo, with an onset of effect at about 30 minutes (2004).
  • Fast effect: peak blood level about one hour after injection, with a bioavailability of about 100% (FDA label).
  • Lasting effect: users report 6 to 12 hours of effect on desire.

It is the only peptide in our catalogue whose molecule is approved for sexual desire.

Level of evidence, possible effects and contraindications: see the full PT-141 profile.

from
$137.60−20% VIP members

30-day trial, no card: the member price from today, no commitment. Start my free trial

$172.00 without a subscription

+ $20.00 shipping, free from 2 items

Format

No cycle: the 15 mg pen gives 8 uses, taken whenever you choose · $18 per use as a VIP member.

1

1 to 2 business days in Quebec and Ontario

In stock

Good to know: not for use with uncontrolled high blood pressure, heart disease, or during pregnancy.

Add 1 item and shipping is free (from 2 items).

Recommended supplies
  • Embouts d'aiguille, paquet de 50A fresh needle tip for every injection$16.00
  • Tampons d'alcool, boîte de 25To disinfect before injecting$6.00
  • Combo embouts et tamponsNeedle tips and swabs together$20.00
More info
Is it for me?

People choose it for desire, in women as in men, with a molecule approved in the United States since 2019 after two phase 3 trials.

Not for you if:

  • Uncontrolled hypertension or known cardiovascular disease.
  • Pregnancy or breastfeeding.
  • Blood pressure treatment, without your prescriber's advice.
  • Minors.
How to use
The box
  • Ready in one step: the included water syringe is already measured for this pen.
  • In the box: the pen, its pre-measured water syringe, 12 needle tips (a new one for each injection) and the alcohol swabs.
  • The Peptiva system: powder sealed without air or light, intact down to the last dose. Sealed until you: the box is shrink-wrapped at Peptiva, you are the first person to open it. Pen or vial: the difference
  • Shipped from Quebec by Xpresspost, 1 to 2 business days in Quebec and Ontario*, with tracking. Replacement if your package is lost.
  • Certificate of analysis to come for this product.
  • Pen with a defective mechanism: our team assesses it, and replaces it at no charge if the defect is confirmed. See the details.
Effects to watch for
Shipping
Storage

Good for 6 weeks after reconstitution, if it has been kept properly: in the fridge, away from light, with an alcohol swab on the tip before each use. Past that, we do not recommend using it, even if some is left; if the liquid turns cloudy or changes colour, do not use it, even before.

VIP membership

$137.60for this product, instead of $172.00

$34.40 off this item (20% off all year), plus shipping at $10 instead of $20: the membership pays for itself by your 3rd order.

See all 3 benefits
  • Member: this protocol becomes a dose schedule in your account, with its days, its reminder time and the tracking of your effects.
  • Your training and meal plans: built from your answers, with every exercise shown on video, every meal with its calories and macros, and your grocery list.
  • Victor, your VIP butler: he adjusts your dose, your days and your plans; you confirm with one click.

Membership$119· 12 months· free from $649

Scientific studies3 studies
  1. 2019 · Kingsberg et al., Obstetrics and Gynecology (RECONNECT trials) · Two randomized, placebo-controlled phase 3 trials, premenopausal women with hypoactive sexual desire disorder

    Significant increase in desire and decreased distress related to its decline compared with placebo; nausea was the main adverse effect, especially at the start.

  2. 2008 · Safarinejad and Hosseini, Journal of Urology · Randomized, placebo-controlled trial in men who did not respond adequately to sildenafil

    Improved erectile function in a substantial share of participants, showing the value of a central mechanism where the vascular pathway isn't enough.

  3. 2004 · Diamond et al., Urology · Double-blind, placebo-controlled trial in men with erectile dysfunction

    Increased erectile response and desire on bremelanotide, including without visual stimulation: the central effect is confirmed.

All the science in the full profile

Chemical identityCAS No. 189691-06-3

Bremelanotide

Form
Synthetic peptide, values for the base form
CAS No.
189691-06-3

Salt form: as stated on the lot's certificate of analysis.

The Peptiva system

From the box to the first injection, in three steps.

  1. 1. Receive

    The pen and its water syringe arrive in the same box.

  2. 2. Empty the syringe

    One gesture, once: the water goes into the pen, the plunger moves back.

  3. 3. Set the dial

    For each injection, a new needle tip and the dose on the dial, with nothing to measure.

The protocol comes with the product

Dosage, cycle length, storage and injection technique, written for this product. Get it right now, even before you order.

Where to find it: The QR code on your box label · In My account, as soon as the order is paid · In the payment confirmation email

Get the protocol by email

A Peptiva account is required: the full protocol is sent to that account's email as soon as it exists.

Frequently asked questions about this product

What if my package never arrives?+
Every order ships from Quebec with a tracking number. If the carrier confirms the loss, we send you a replacement at no charge.

* Xpresspost transit time for most areas of Quebec and Ontario, counted from shipping and not from the order. Allow 2 to 4 business days elsewhere in Canada. Shipping details.

Understand it all

Peptiva in two minutes: who we are, how it works, what the site does for you.

Peptiva in brief

At Peptiva, the starting point is your goal, never a product name.

  • A sealed pen: the powder and its water syringe, joined in one gesture before the first dose. The peptide never touches the air.

  • Every batch is tested by an independent laboratory; certificates of analysis are published batch by batch.

  • Shipped from Quebec by Xpresspost, and a team that answers 7 days a week.

On video

  • Opening the box · 32 sOn-screen text in French.

  • How to use it, in 9 steps · 1 min 10On-screen text in French.

  • Why a pen, not a vial · 30 sOn-screen text in French.

Victor, your VIP butler

Victor

An artificial intelligence with your protocol, your plans and your week in front of him. You write one sentence, he prepares the change, you confirm with one click.

30 days free, once per person, no card.

Meet Victor

The 5 essentials of the site

  1. 1Build my pathUp to three goals, a few questions: your plan, with explained suggestions. Free, no account.
  2. 2Peptiva stacksOne product at the centre, the options paired with it, and the price of the set calculated as you go.
  3. 3My protocolYour units and your schedule, sent by email and in My account.
  4. 4The Peptiva CentrePeptide sheets, guides, FAQ and lifestyle habits, free to read.
  5. 5CalculatorsCalories, protein and hydration: your starting points, in one minute.

Practical

  • Storage

    Not mixed: fridge, or freezer for up to 24 months.

    Mixed: fridge only, never in the freezer.

    The water syringe: always in the fridge.

    Full details
  • Shipping and tracking

    Your order tracking: in My account.

    Times and regions
  • A question?

    A member of the Peptiva team answers, 7 days a week.

    Write to us

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