She did NOT like the feeling. It was purely physical with no emotion. No desire to love on or attraction
Negative1.5 mg
woman
Strict case
Cardiovascular effects (BP spikes; contraindicated in CVD) and melanocortin pigmentation effects.
Users report
Polarised. Some users (including post-prostatectomy men) report 'like a teenager' effects and intense orgasms. Others get help only 2-3 times out of 10, and one woman found it purely physical with no desire. Nausea is the main complaint, sometimes severe, plus facial flushing. About 30-40% report weak or no effect.
Best effects
Increased desire/arousal · stronger erections independent of PDE5 · more intense orgasm
Transient blood-pressure rise and heart-rate drop after each dose; contraindicated in uncontrolled hypertension / cardiovascular disease · Focal hyperpigmentation with repeated use · Priapism risk (melanocortin class)
Evidence
Approved drug — approved in US (2019, premenopausal HSDD, 1.75 mg)
Typical use
Community starts 250-500 mcg subQ, up to the 1.75 mg label dose, max once per 24 h.
Getting it
Vyleesi (1.75 mg autoinjector) is a US prescription drug for premenopausal women with HSDD, capped at 8 doses a month. Men and most Reddit users buy grey-market 10 mg vials or nasal sprays (users find the sprays weak); some US clinics compound it.
Stacked with
Tadalafil or sildenafil: The most common pairing, PDE5 for the erection and PT-141 for desire; the ER priapism reports come from this combination. · Ondansetron or an antihistamine: Taken 1-2 hours before the dose; users say it makes the nausea and flushing manageable. · Oxytocin: Suggested and tried by women who found PT-141 purely physical with no emotional desire. · Melanotan II: Same receptor family; long-term MT2 users say MT2 gives a similar libido effect and also tans, while PT-141 users report skin darkening too.
It has been a life changer for me, the normal ED meds were not working well so in desperation I tried it. It works every time but you have to get use to scheduling sex.
I had my prostate removed in 24 and have suffered from ed every since. I was taking max dose of viagra and cialis with no help. Then PT141 entered my life and now im like a teenager!
I took 250mcg for the first time ,I was a bit dizzy after two hours but that was short lived .I have never experienced sex the way I did after that injection ,the orgasm was like something else .
I haven’t performed liked that since I was in my 20s. I struggle with occasional ED due to heart issues and large doses of beta blockers. Was able to go multiple times.
Glowing
man with heart disease on high-dose beta blockers, took it with sildenafil
Def works. 1.5ish seems to be the dose that works for me. 2mg had me watching the clock for that famous 4 hour mark. Only side effect I noticed was getting darker.
It gives me endless chubbies and spontaneous erections. And yes the nausea is real but only for about an hour After the injection but I find it totally worth the price.
I don't notice anything until about six or seven hours later, and it's just an erection. I mean it's fun to have an erection, but I don't feel any hornier than usual.
I tried it a few times at around 1mg and it didn’t do anything except for the flushing within a few minutes after pinning. I get much more out of Cialis.
The nasal spray did absolutely NOTHING for me and whatever liquid they used burned like fire for several minutes. Threw it away after several attempts.
I got an RX for Vyleesi and took a full dose. I thought it would do something because I’m petite (106lbs) and sensitive to medications. All it did was make me somewhat nauseated and tired.
I tried it multiple times im determination to get it to work for me, but no matter what I do or change, it just makes me so nauseous that I have to lay down and do nothing.
Omg I took 5mg of pt like an IDIOT thinking oh I’m on ssris and pain meds so my libido is done..so I need max dose…oh fuck that….i had horrible restless legs, nausea, dizzy, and I slept the entire next day.
Bad reaction5 mg (about 3x the label dose)
on SSRIs and pain medication
Safety
Tier by safety barStrict ExcludedBalanced ExcludedEvidence only Excluded
Seen harmMechanismData gapSilent harmProduct
Seen harm 2/3
The Vyleesi label warns of a transient blood-pressure rise and focal hyperpigmentation (1% at up to 8 doses a month, but 38% after 8 daily doses, not always reversible); serious adverse reactions were 1.1% vs 0.5% on placebo, including one case of acute hepatitis. Vyleesi (bremelanotide) US prescribing information ↗
FDA-approved since 2019 on two 24-week trials in 1,247 premenopausal women plus a 684-woman 52-week extension. The caveat is fit, not size: post-marketing use is small, and men and the daily dosing common with grey-market vials are outside the trials. Vyleesi (bremelanotide) US prescribing information ↗
Uncontrolled hypertension or known cardiovascular disease (label) · Dark skin or a history of pigment disorders, with frequent dosing · Pregnancy or breastfeeding (no human reproductive data)
Each bead is one amino acid in the peptide's chain, coloured by its side chain: grey for non-polar, cyan for polar, blue for positively charged and fuchsia for negatively charged. Length and mix tell related peptides apart at a glance, from a two-residue dipeptide like carnosine to a 43-residue protein like thymosin beta-4. The colours describe chemistry only and predict neither effect nor safety.
non-polarpolarpositivenegative
Report grades
Every first-hand Reddit or X report is graded on its own, from glowing through positive, mixed, nothing and negative to bad reaction, and the bar shows how those grades split. Posts that look vendor-adjacent stay on the peptide's page but are left out of the counts.
GlowingPositiveMixedNothingNegativeBad reaction
% positive
The share of a peptide's graded Reddit and X reports that are glowing or positive, vendor-adjacent posts left out. A peptide with few reports is pulled toward the average of all reports, as if it had eight average ones besides its own, so two glowing posts cannot top the list. Kept peptides rank by the same reports' mean grade, shrunk the same way, and excluded ones follow in that order.
Researcher estimate
No first-hand report of this peptide has been graded yet, so the figure is the researchers' own rating out of 10 from what they read about it. It ranks alongside the computed scores until reports arrive.
Safety tier
Each peptide is tiered clean, caution or excluded from its five risk axes under the chosen safety bar. An excluded peptide has a plausible route to serious harm, so it stays listed with the reason but ranks behind every other entry, however good its reviews.
Safety bar
The safety bar sets how much risk it takes to exclude a peptide. Strict: out on any serious mechanism with little human data, or any documented serious harm. Balanced: out on documented serious harm (unless it is obvious, reversible and from a regulated product), or a serious mechanism whose harm would be silent with no human data at all. Evidence only: out only on documented serious harm in humans that is lasting, delayed or from grey-market product.
Seen harm
Documented serious adverse events in humans, from 0 for none despite real exposure to 3 for deaths or several well-documented serious harms. Serious means a hospital or emergency visit or harm lasting weeks, so a headache or a bad night does not count.
Mechanism
A plausible biological route to serious harm at the doses people use, such as growth-factor signalling, hormone-axis suppression, heart or blood-pressure effects or immune activation. It runs from 0 when none is known to 3 when a dangerous pathway has been shown in living animals.
Data gap
How little human safety data exists for the molecule actually sold, from 0 for an approved drug with large trials and years of use to 3 for no human safety data at all. A modified analogue does not inherit its parent's trials.
Silent harm
Whether the feared harm would show quickly or stay hidden, from 0 when it is obvious and goes on stopping to 3 when it is silent and delayed, like tumour promotion or slow organ damage. User reports cannot reveal a harm that takes years to appear, so a high score here limits what good reviews can tell you.
Product
The risk of what people actually buy, from 0 for a regulated pharmacy or supplement product taken by mouth or on the skin to 3 for a grey-market injectable. In one dataset of 6,441 grey-market samples, 42–71% failed basic quality criteria and 15% carried endotoxin.
Evidence
The strongest kind of study behind the peptide's effects, from an approved drug through human controlled trials and small human studies to animal work or nothing of its own. Animal results often fail to carry over to people.
Access
How people get it: as an approved drug, a compounded prescription, an over-the-counter supplement or from the grey market, where nobody checks the vial. The channel decides both the legal position and the risk of a bad batch.
Price per month
Thirty days of the typical dose, from its low end to its high end, priced at the listing a careful buyer would choose: in stock, from a shop scoring 4 of 5 on trust (third-party tested where no score is set), failing that 3, a pure pack before a blend, a European shop first, then the cheapest per mg. The range is the dose's, not the shops'. A per-dose amount counts once a day unless the dose says otherwise. Prices are in euros at ECB rates of 2026-10-29, before shipping; the shop table keeps each listing's price per mg, per gram for bulk supplements. Where no listing can be priced the researchers' own estimate stands in, and says so.
Dose users report
The middle half of the daily doses stated in at least five first-hand reports, vendor posts left out. Where its middle sits more than twice above or below the declared dose, the month is priced at it as well, since what people take is what they pay for.
Testing
Whether the shop publishes lab results: third-party tested means an independent lab checks each batch, own COA means the shop's own certificate of analysis, and no public tests means neither. A certificate shows purity, not safety.
Added peptide
Some packs sold under one peptide's name hold a second one, such as 5 mg GHK-Cu in a nasal kit, stated only in the description. Sprayed in the nose or injected it reaches the blood like an injection, so it carries the risk of that route and is tiered as the injectable form, whatever its tier on the skin. A pack whose page gives no contents list may hold more than its name.