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Every batch is third-party tested before leaving our facility.
Fast, tracked delivery dispatched in 0–2 business days.
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Prescription use: Sildenafil is a prescription PDE5 inhibitor used to treat erectile dysfunction. It supports an erection by increasing penile blood flow during sexual stimulation and does not work without stimulation.
Typical prescribed dosage: The usual starting dose is 50 mg approximately one hour before sexual activity. It may be taken from 30 minutes to four hours beforehand. A clinician may adjust the dose between 25 mg and 100 mg. The maximum recommended frequency is once daily.
Important warning: Sildenafil must not be combined with nitrates or riociguat because this can cause a serious reduction in blood pressure. Seek emergency care for an erection lasting longer than four hours.
Nothing hidden
Every component, identified. Sequences and identifiers are taken from PubChem and UniProt, so you can check each one yourself.
UK-92480 · PDE5 inhibitor
Small molecule · pyrazolopyrimidinone
The first selective inhibitor of phosphodiesterase type 5 (PDE5) to be developed. Identifiers shown are for the free base.
No certificate of analysis is assigned to this listing yet, so no lot or lab values are shown. Identifiers are reference values from PubChem.
Published research
Short summaries of peer-reviewed literature on Sildenafil: laboratory, animal and clinical research and reviews. Shown for reference only.
A 1999 review describes the pharmacology of sildenafil as a novel and selective inhibitor of phosphodiesterase type 5.
A 2000 CMAJ review traces sildenafil from laboratory research to clinical use.
A 2018 British Journal of Pharmacology review covers PDE5 inhibitor pharmacology 20 years after sildenafil was discovered.
Why Lexar
What you can check for yourself before you order, using the certificate published for this exact lot.
“Typical supplier” describes common practice in the research-peptide market, not any named company.
No risk on arrival
If an order arrives broken, faulty, wrong or short, we send a free replacement. You keep the original item.
Lost, stolen, or damaged? We replace it, on us.
If an item arrives broken, faulty, wrong or missing, reach out within 30 days of delivery and we ship a replacement at no charge.
Keep the original item. Eligibility is assessed from your order number, a short description and clear photos of the item and packaging.
Requests go through the chat support on this website. Order issue? We fix it instantly.
Delivery
Tracked delivery to Canadian addresses, in plain packaging.
Orders placed before the cutoff (12:00 PM PT) on a business day ship the same day.
Sealed vial, plain outer packaging, no product branding on the box.
Tracking follows once the order leaves us. Standard delivery is an estimated 3–5 business days.
Free shipment protection covers loss, theft and damage in transit.
Still have questions?
Answers about this lot, its certificate, and how ordering and delivery work.
Questions about an order, a lot or a certificate go to our team through the chat support on this website.
Contact usBuy 2 of any product and the 3rd is free, added automatically in your cart before checkout.
Choose a bundle in the buy box above. Bundle savings of up to 40% are applied automatically at checkout.
Orders are dispatched in 0–2 business days with tracking. Standard delivery is an estimated 3–5 business days after that, and overnight or 2-day options are available at checkout.
Yes. Orders ship in plain packaging with no product branding on the outside.
Contact us through chat support within 30 days of delivery with your order number, what went wrong and clear photos. Approved requests get a free replacement, and you keep the original item.
Except where the law requires otherwise, orders are final and we don't offer refunds, exchanges or returns. Problems with a delivery are covered by the free replacement above.
Not at the moment. Delivery is available to Canadian addresses only.
based on 143 reviews
Vials arrived cold-packed and sealed. Labels are clean, batch number matches the paperwork.
Ordered Tuesday night, plain brown box at my door in Ottawa by Friday morning. No branding anywhere.
The buy 2 get 1 applied itself in the cart exactly like the banner says. Watched the third one appear on its own.
Third order now. Same packaging, same speed, same quality every time. That consistency is why I stay.
Was skeptical about ordering this kind of thing online but the whole process felt legit from cart to doorstep.
Customer support actually answered at 11pm on a Sunday. A real person, fixed my address typo in two minutes.
Everything came bubble-wrapped with the vials in a foam insert. Nothing rattling around.
Prices are right on the page, no games at checkout. Total matched to the cent.
My GHK-Cu came with proper labeling and an intact seal. Exactly what the photos show.
Fast. Like, faster than my usual pharmacy fast.
Discreet is an understatement. My roommate signed for it and had no clue.
The site is the least annoying shop I’ve used all year. Found it, added it, paid, done.
Reordered twice already. The free third unit basically decides where I shop now.
BPC-157 vials arrived intact with clear expiry dates printed. Appreciate the attention to detail.
Tracking updated at every step. Kelowna in four days.
Clean website, clear photos, and what arrived matched the photos. Rare these days.
The cart timer stressed me out a little but honestly it made me stop procrastinating. Order was flawless.
Shipped same day I ordered. Didn’t expect that.
No signature circus, no customs drama, just a quiet grey mailer in the box.
Asked their chat which pack size to get and got a straight answer instead of an upsell. Respect.
Order number five. Zero problems in any of them.
The paperwork inside listed everything in the order. Easy to check nothing was missing.
Toronto delivery in three days flat.
Everything about this store feels deliberate. Packaging, labels, even the receipt is tidy.
Free unit landed in my cart automatically. No code hunting. This is how promos should work.
Glass arrived without a single crack, and I live at the end of a very bumpy rural route.
They answered my email in under an hour on a weekday. Who does that anymore.
My wife ordered for me as a gift. She said checkout took her two minutes.
Legit tracking number within hours, not one of those labels that sits in limbo for a week.
Compared prices around for a month. Came back here. With the promo nobody touches them.
The box gave away absolutely nothing. Could have been socks.
Everything sealed, everything labeled, everything on time.
I like that the price on the card is the price you pay. No surprise fees at the end.
Second time ordering the tadalafil. Same batch quality, same quiet packaging.
Delivery to Montreal in 3 days. Tracked the whole way.
Ordered at lunch, confirmation and tracking before dinner.
The purity documentation was included without me even asking.
Site remembered my cart after I got distracted for a day. Small thing but appreciated.
Straightforward, quiet, fast. Exactly what you want from a store like this.
Chat support helped me swap a size before the order shipped. Painless.
Sturdy box, cold pack still cool on arrival in July. Someone thought this through.
Every vial individually wrapped. Zero breakage across two orders now.
They restocked what I wanted within the week and emailed me about it. Bought instantly.
The free third unit showed in my cart before checkout, priced at zero, plain as day. No fine print games.
Vancouver, four days, plain packaging, everything intact.
Genuinely surprised how smooth this was. Bookmarked.
Ordering was quick and the follow-up emails weren’t spam, just the actual updates I wanted.
Labels are pharmacy-grade neat. Instills confidence before you even open anything.
I’ve had sketchy experiences elsewhere. This place is the opposite of that.
Package arrived earlier than the estimate. First time I’ve ever written that sentence.
Their Retatrutide packaging is the cleanest I’ve seen from any vendor, period.
Reasonable prices, honest promo, fast post. Nothing else to ask for.
The whole order fit through the mail slot. Neighbours none the wiser.
Support walked me through the reconstitution supplies I’d forgotten to add. Saved me a second shipping fee.
Halifax in five days, which for us is basically teleportation.
You can tell the inventory is stored properly. Everything arrives like it left a lab, not a garage.
Checkout took less time than typing this review.
The 2+1 promo plus fair base prices. Did the math against three other stores, this won.
No leaks, no dents, no drama. Just a well-packed box.
Emailed to change delivery address an hour after ordering. They caught it before shipping. Heroes.
Everything I’ve ordered over four months has been consistent. That’s the whole review.
Winnipeg delivery mid-winter and the contents were properly protected. Impressed.
First order arrived so fast I thought they shipped from my own city.
The cart shows you exactly what’s free and what you’re paying. Total transparency.
Clean transaction, no weird charges on my statement, discreet descriptor. All good.
My third vial was genuinely free. Confirmed on the receipt. Promo is real.
Simple site, honest prices, fast shipping. The whole trio.
Sealed, labeled, cold. Three for three.
They fixed my postal code mistake before the courier picked it up. Fast eyes.
Been burned by online stores before. This one restored a little faith.
The tablets came in a proper sealed blister, not loose in a bag like some places send.
Quality of everything, from the vials to the tape on the box, says they care.
Order confirmation, shipping notice, delivery, all on time, all accurate.
Calgary in three days. Plain box. Perfect condition.
I appreciate that they don’t blast you with marketing emails after one order.
Big fan of the automatic free unit. No coupon codes to forget.
Package number six just arrived. Still flawless.
Batch numbers on everything, matching documentation inside. Professional operation.
Storefront answered a technical question about storage temps accurately. They know their products.
Everything arrived exactly as ordered, nothing substituted without asking.
Best packaging I’ve received from any online order, supplements or otherwise.
The site works properly on a phone, which apparently is hard for most stores.
Prompt, quiet, complete. Reordering next month.
Honest store. Item was short in stock and they told me BEFORE charging, offered a swap or refund.
Arrived during a postal slowdown only two days late, and they’d already emailed a heads-up. Class.
The included invoice made expensing this to my clinic budget painless.
My order history and reorder button actually work. Two clicks and the same box shows up.
No complaints across three orders and two product types. Solid.
Saskatoon, four days, all intact. Doesn’t get better out here.
The free-item line on the receipt says $0.00. Love seeing it in writing.
Sealed factory packaging, legible lot numbers, sane prices. Take my money.
Whole experience felt like ordering from a proper pharmacy, minus the waiting room.
Very happy with the speed and the state everything arrived in.
They clearly cold-chain the sensitive items. Mine arrived still cold after two provinces.
Easy checkout, real tracking, quiet box. Repeat customer now.
Someone taped every seam of the box. Overkill and I love it.
Quick delivery to a PO box with zero fuss.
The product page told me everything I needed, so nothing that arrived was a surprise.
Five stars for the support person who noticed my duplicate order and refunded one before shipping.
Everything legit, everything fast. Don’t overthink it like I did.
Consistent quality across two different product lines. That’s not luck, that’s process.
From add-to-cart to delivered in under a week, coast to coast.
Delivery took five days instead of the estimated three, but everything arrived in perfect shape.
Solid experience overall. Would love more pack-size options on a couple of products.
Packaging was excellent. Docked a star because the tracking link lagged a day behind reality.
Everything as described. Wish the restock alerts were faster, my size sells out quickly.
Good prices, promo worked perfectly. The site search could be smarter about typos though.
Second order arrived quicker than the first. Getting better each time.
Order was complete and well packed. An extra payment option or two would be nice.
Almost perfect. The cold pack had thawed by arrival, though the contents were fine.
Very good store. Only note is the delivery estimate ran a day long over a long weekend.
Everything came sealed and correct. Just wish shipping to the Maritimes was a bit quicker.
Happy with the products and the promo. The confirmation email landed in spam, worth fixing.
Reliable so far across two orders. One vial label was slightly crooked, contents perfect.
Good communication when my order was delayed a day at the depot. Kept me informed.
Prices are fair and the free unit is real. Checkout felt one step longer than it needs to be.
Arrived safely and discreetly. Would appreciate weekend dispatch, ordered Friday and it moved Monday.
The order was right, the speed was fine, the box was quiet. Just short of perfect because tracking went dark for 48 hours mid-route.
Quality products, clean labels. A loyalty program would seal the deal for me.
No issues with the order itself. The site was briefly slow the evening I bought, that’s my only note.
Well packed, correct items, promo applied. One product page could use more detailed specs.
Four orders in and only one tiny hiccup, a day’s delay once. I’ll take that record.
Good store. Delivery to rural Alberta took six days, understandable but noting it.
Everything correct and intact. Would love a printed storage-instructions card in the box.
Prompt support, honest prices. Occasionally items I want are out of stock, hence four stars.
The experience was smooth. Just wish the cart kept my items longer between visits.
All good on quality and speed. Invoice took a follow-up email to get, minor thing.
Really solid overall. Box was a little battered by the courier but the inner packing did its job.
Great products and honest promo. Site could remember my shipping details better.
Smooth from cart to courier. Only wish there were a small sample size to try new items first.
Everything showed up correct and quickly. The chat took a few hours to reply on a holiday, otherwise perfect.
Order arrived complete but took nine days with almost no tracking movement. Contents were fine, patience required.
Products themselves are good. My second order had a wrong size that support did fix, though it took a few emails.
Middle of the road. Fast checkout, slow delivery, average communication. Would try once more.
The items were well packed but one vial label was smudged and hard to read. Replacement was offered, still a hassle.
Decent store. My promo unit was missing at first and only appeared after I contacted support.
Fine but not fast. Both my orders spent a week in transit. Everything arrived okay.
Took almost two weeks to arrive and tracking showed nothing for most of it. Contents fine, nerves not.
My parcel sat at the depot for days and support could only tell me to wait. Order was correct in the end.
Charged promptly, shipped slowly. Five days before it even left the warehouse. Not in a rush to reorder.
Waited three weeks, had to open a ticket twice before anyone traced the parcel. It did arrive, but never again without faster support.
Delivery estimate said five days, took seventeen. No proactive updates at any point. The refund offer came too late to matter.
Wrong item in my first order and the return process dragged on for two weeks. Soured the whole experience.
Research use & disclaimers
