Sexual Health

PT-141 (Bremelanotide) Peptide Calculator

Use the PT-141 (Bremelanotide) peptide calculator below to determine your reconstitution and dosing. A melanocortin receptor agonist that works through the central nervous system to improve sexual arousal. FDA-approved as Vyleesi for hypoactive sexual desire disorder in premenopausal women.

Also known as: Bremelanotide, Vyleesi

Peptide Reconstitution Calculator

Use this free peptide calculator to get accurate dosing. Select a peptide or enter custom values. All calculations are performed locally in your browser.

Step 1: Select Peptide

PT-141 (Bremelanotide) -- A melanocortin receptor agonist that works through the central nervous system to improve sexual arousal. FDA-approved as...Route: Subcutaneous injection | Frequency: As needed (max 1x per 24 hours) | Half-life: ~2-4 hours

Step 2: Peptide Vial Strength (mg)

Step 3: Bacteriostatic Water Added (mL)

Step 4: Desired Dose

Below typical range (1 mg - 2 mg)

Your Results

Concentration

2.5 mg/mL

= 2500 mcg/mL

Volume to Draw

0.10 mL

Syringe Units (U-100 insulin syringe)

10.0 units

100 units = 1 mL on a standard U-100 insulin syringe

Doses Per Vial

20 doses

at 250 mcg per dose from a 5mg vial

U-100 Insulin Syringe

50u

100u

10.0 units

0.10 mL

Summary: Add 2 mL of bacteriostatic water to your 5mg vial. To get a 250 mcg dose, draw 0.10 mL (10.0 units) on a U-100 insulin syringe. This vial will provide 20 doses at this dosage.

For research purposes only. This peptide calculator is a mathematical tool and does not constitute medical advice. Always consult with a qualified healthcare professional before using any peptide.

In Stock

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Research-grade PT-141 (Bremelanotide), ≥ 99% purity. Order over WhatsApp -- shipping and payment confirmed before dispatch.

$59.00per 10 mg vial

Worldwide shipping in about 14-25 business days.

Checkout is completed over WhatsApp -- add what you need, then confirm availability, shipping and payment directly with our team. Sold for laboratory and research use only.

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PT-141 (Bremelanotide) Quick Reference

Typical Dose

1 mg - 2 mg

Frequency

As needed (max 1x per 24 hours)

Route

Subcutaneous injection

Half-Life

~2-4 hours

Common Vials

10 mg

Reconstituted Stability

Up to 30 days refrigerated

Note: Inject 45-60 minutes before desired effect. May cause nausea, flushing, or headache. Do not use more than once in 24 hours or more than 8 times per month. May cause temporary skin darkening.

PT-141 (Bremelanotide) Storage

Lyophilized: 2-8 C. Reconstituted: 2-8 C

Stability after reconstitution: Up to 30 days refrigerated. Always use bacteriostatic water for multi-use reconstitution. Label the vial with the reconstitution date and discard after the stability period. Use our peptide calculator above to determine the right amount of water to add.

PT-141 (Bremelanotide) Frequently Asked Questions

1-2 mg injected subcutaneously 45-60 minutes before desired effect. Start with 1 mg to assess tolerance. The FDA-approved Vyleesi uses 1.75 mg per dose.

Add 2 mL bacteriostatic water for 5 mg/mL. For 1 mg, draw 0.2 mL (20 units). For 1.75 mg, draw 0.35 mL (35 units). For 2 mg, draw 0.4 mL (40 units).

At 1 mg per dose: 10 doses. At 1.75 mg per dose: approximately 5 doses. At 2 mg per dose: 5 doses.

Effects typically begin 45-60 minutes after injection and can last 6-12 hours. Some users report effects lasting up to 24 hours.

Yes, PT-141 is related to Melanotan II and can cause mild skin darkening (tanning effect), especially with repeated use. This effect is usually temporary and fades after discontinuation.

Do not use more than once in 24 hours. The FDA recommends no more than 8 doses per month. Frequent use may lead to tolerance and diminished effects.

PT-141 (Bremelanotide) Peptide Calculator

Peptide Reconstitution Calculator

Your Results

Buy PT-141 (Bremelanotide)

PT-141 (Bremelanotide) Quick Reference

PT-141 (Bremelanotide) Storage

PT-141 (Bremelanotide) Frequently Asked Questions

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