PT-141
Sexual Health & Libido
Libido · Arousal · Confidence
Starting at $185 · Syringes & swabs included · Provider review free · Shipping free.
How PT-141 Works
PT-141 (Bremelanotide) activates melanocortin receptors in the brain's hypothalamus — the desire center — rather than affecting blood flow. This makes it uniquely effective even when ED treatments fail.
Subcutaneous injection — a small needle into the fatty tissue beneath the skin. Bypasses oral degradation for near-complete bioavailability. Given at home with step-by-step video guidance and education — no clinic visits required.
Key Benefits
- Heightens desire and arousal (brain-level)
- Works for both men & women
- Improves sexual performance and satisfaction
- Supports stronger, longer-lasting erections in men
- Rebuilds sexual confidence
- Use as-needed — ~45 min onset
Ideal For
- Low libido (men & women)
- HSDD in women
- Adjunct to ED therapy
- As-needed sexual health
The Science Behind PT-141
Melanocortin Pathway
PT-141 activates MC3R and MC4R melanocortin receptors in the hypothalamus — the brain region governing sexual arousal and desire. This central mechanism is why PT-141 can work even when vascular-based ED treatments fail.
FDA Approval History
Bremelanotide (PT-141) received FDA approval in 2019 as Vyleesi for HSDD in premenopausal women — the first centrally-acting sexual dysfunction treatment for women. Its mechanism differs fundamentally from all PDE5 inhibitors.
Real pharmacy medication —
not gray-market peptides
Your PT-141 is a genuine prescription medication, compounded for you by a licensed U.S. pharmacy and dispensed only after a provider approves it. That is a different world from the “research only” peptides sold online with no provider, no pharmacy, and no testing behind them.
Compounded by a licensed U.S. pharmacy
Every order is prepared for you individually by a state-licensed compounding pharmacy under a valid prescription — and those pharmacies operate under the oversight of state boards of pharmacy.
Made to USP sterility standards
Our injectables are compounded to USP <797> — the national standard for sterile preparations that helps protect against contamination, sub-potency, and dosing errors.
Tested for identity, strength & purity
Each batch is verified against established USP quality standards, and we can provide a Certificate of Analysis (COA) on request — so you know exactly what is in the vial.
A real provider behind every vial
A licensed Affinity provider reviews your health history and writes the prescription. Products labeled “research use only” or “not for human use” have none of that — and the FDA has taken action against sellers marketing peptides that way.
Straight talk: compounded medications like these are not FDA-approved, which means the FDA does not review them before they are dispensed. What they do have is a licensed pharmacy, a valid prescription, sterile-compounding standards, and batch testing standing behind them — the safeguards an unregulated vial bought online simply does not have.
How our PT-141 pricing compares
Compared on compounded injectable PT-141 (bremelanotide), used as needed. Figures below are the est. cost per dose.
Affinity is the lowest-cost option in every category — and the only one without a subscription or paid membership.
Est. cost per dose shown for comparison. Other providers' prices are their publicly listed rates as of June 2026 and may require a paid subscription or membership as noted — see each provider's site for current pricing. Affinity Direct is a one-time purchase or refill, with provider review always free.
PT-141 — Common Questions
ED medications (PDE5 inhibitors) work by increasing blood flow to the genitals — a peripheral vascular mechanism. PT-141 (Bremelanotide) works centrally by activating melanocortin receptors in the hypothalamus — the brain's desire center. This means it addresses the neurological component of sexual response, not just the vascular component.
Yes. PT-141 is uniquely effective for both men and women because it targets central desire pathways rather than genital blood flow. For women with hypoactive sexual desire disorder (HSDD), PT-141 offers a mechanism that PDE5 inhibitors cannot provide.
PT-141 is a subcutaneous injection administered approximately 45 minutes before desired effect. It is used on an as-needed basis — not as a daily protocol. This makes dosing flexible and patient-controlled.
Common side effects include transient nausea, flushing, and headache — particularly at higher doses. These effects are typically mild and short-lived. Your provider will discuss appropriate dosing to minimize side effects while achieving the desired effect.
PT-141 (Bremelanotide, brand name Vyleesi) is FDA-approved for hypoactive sexual desire disorder (HSDD) in premenopausal women. For other indications, it is prescribed as a compounded medication. A licensed Affinity provider determines clinical appropriateness during your intake evaluation.
PT-141 and PDE5 inhibitors work through different mechanisms, making them potentially complementary. However, combination use should only occur under provider supervision. Your Affinity provider will evaluate your full medication list and health history before prescribing.
The most common side effects are temporary and usually mild — facial flushing, headache, and some nausea, which often eases after the first couple of uses. A few people notice nasal congestion or mild indigestion. PT-141 can briefly raise blood pressure, so it isn't prescribed for people with uncontrolled high blood pressure or heart disease. Taking it with a light snack and using the lowest effective dose keeps most people comfortable — and your provider is available if you have questions.
PT-141 briefly raises blood pressure, so it isn't appropriate for anyone with cardiovascular disease — including a history of heart attack or stroke — or high blood pressure (hypertension), or for anyone who is pregnant or breastfeeding. Your Affinity provider reviews your full health history during intake and won't prescribe it if it isn't safe for you.
Start PT-141 Today.
Provider review free. Shipping free. Full refund if treatment is not approved.
Start Free Evaluation →Licensed providers · Provider review free
These statements have not been evaluated by the FDA. These products are not intended to diagnose, treat, cure, or prevent any disease. Compounded medications require a valid prescription from a licensed provider. For investigational/wellness use only.