Lexar product

Tadalafil

In stock
$35.00
Strength (mg)
Select frequency
How Many Pills
QUANTITY
$35.00

Why shop with us

Lab-Tested Purity

Every batch is third-party tested before leaving our facility.

Express Shipping

Fast, tracked delivery dispatched in 0–2 business days.

Make-It-Right Guarantee

Order issue? We fix it instantly. Your trust matters most.

Prescription use: Tadalafil is a prescription PDE5 inhibitor used to treat erectile dysfunction. It helps increase blood flow during sexual stimulation and does not automatically cause an erection or increase sexual desire.

Typical prescribed dosage: For as-needed treatment, the usual starting dose is 10 mg before anticipated sexual activity. A clinician may adjust this to 5 mg or 20 mg. Daily treatment generally starts at 2.5 mg and may be increased to 5 mg. It should not be taken more than once daily.

Important warning: Do not take tadalafil with nitrates because the combination may cause a dangerous fall in blood pressure.

Nothing hidden

Compound profile

Every component, identified. Sequences and identifiers are taken from PubChem and UniProt, so you can check each one yourself.

  • 01 / 01 Component

    Tadalafil

    IC351 · PDE5 inhibitor

    Small molecule · β-carboline derivative

    Formula
    C22H19N3O4
    Mol. weight
    389.4 g/mol
    CAS
    171596-29-5
    PubChem CID
    110635

    A selective inhibitor of the enzyme phosphodiesterase type 5 (PDE5), which breaks down cyclic GMP in smooth muscle.

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

What the research covers

Short summaries of peer-reviewed literature on Tadalafil: laboratory, animal and clinical research and reviews. Shown for reference only.

  • Review01 / 03

    Selective PDE5 inhibition

    A 2002 review in Expert Opinion on Investigational Drugs describes tadalafil as a selective PDE5 inhibitor and summarises its early research programme.

  • Review02 / 03

    Cardiovascular pharmacology

    A 2003 American Journal of Cardiology review covers the published cardiovascular pharmacology of tadalafil.

  • Review03 / 03

    PDE5 inhibitor class

    A 2018 British Journal of Pharmacology review describes PDE5 inhibitor pharmacology, including tadalafil, 20 years after sildenafil was discovered.

Full study index · PubMed (3) 2002 · Review Selective phosphodiesterase type 5 inhibition using tadalafil for the treatment of erectile dysfunction.
Kuan J et al. · Expert Opin Investig Drugs
PMID 12437506
2003 · Review Cardiovascular effects of tadalafil.
Kloner RA et al. · Am J Cardiol
PMID 14609622
2018 · Review PDE5 inhibitors - pharmacology and clinical applications 20 years after sildenafil discovery.
Andersson KE et al. · Br J Pharmacol
PMID 29667180

Why Lexar

Lexar vs. a typical supplier

What you can check for yourself before you order, using the certificate published for this exact lot.

What to check Lexar Canada Typical supplier
Lab accreditation Lexar Canada: ISO/IEC 17025:2017 accredited lab Typical supplier: In-house or unnamed lab
Contaminant screening Lexar Canada: Fentanyl, heavy metals, sterility, endotoxin Typical supplier: Purity only, if anything
Signed & downloadable Lexar Canada: Signed PDF on every product page Typical supplier: Screenshot, or “available on request”
When something goes wrong Lexar Canada: Free replacement, keep the original Typical supplier: Return shipping at your cost

“Typical supplier” describes common practice in the research-peptide market, not any named company.

No risk on arrival

Make-It-Right Guarantee

If an order arrives broken, faulty, wrong or short, we send a free replacement. You keep the original item.

  • Free shipment protection

    Lost, stolen, or damaged? We replace it, on us.

  • Free replacement within 30 days

    If an item arrives broken, faulty, wrong or missing, reach out within 30 days of delivery and we ship a replacement at no charge.

  • Nothing to send back

    Keep the original item. Eligibility is assessed from your order number, a short description and clear photos of the item and packaging.

  • Handled by a real person

    Requests go through the chat support on this website. Order issue? We fix it instantly.

Delivery

From our shelf to your door

Tracked delivery to Canadian addresses, in plain packaging.

  1. 01 · Order

    Order before 3:00 PM ET

    Orders placed before the cutoff (12:00 PM PT) on a business day ship the same day.

  2. 02 · Dispatch

    Packed in 0–2 business days

    Sealed vial, plain outer packaging, no product branding on the box.

  3. 03 · In transit

    Tracked across Canada

    Tracking follows once the order leaves us. Standard delivery is an estimated 3–5 business days.

  4. 04 · Delivered

    At your door, protected

    Free shipment protection covers loss, theft and damage in transit.

  • Free standard shipping over $100
  • Overnight and 2-day options at checkout
  • Canadian addresses only
  • Plain packaging

Still have questions?

Before you order

Answers about this lot, its certificate, and how ordering and delivery work.

Talk to a real person

Questions about an order, a lot or a certificate go to our team through the chat support on this website.

Contact us
Ordering & delivery
How does Buy 2, Get 1 Free work?

Buy 2 of any product and the 3rd is free, added automatically in your cart before checkout.

How do the bundle discounts work?

Choose a bundle in the buy box above. Bundle savings of up to 40% are applied automatically at checkout.

How long does delivery take?

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.

Is the packaging discreet?

Yes. Orders ship in plain packaging with no product branding on the outside.

What if my order arrives damaged, wrong or incomplete?

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.

Can I return or exchange an order?

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.

Do you ship outside Canada?

Not at the moment. Delivery is available to Canadian addresses only.

customer feedback

Customer reviews

143 reviews
4.8
★ ★ ★ ★ ★

based on 143 reviews

5 ★ 125
4 ★ 12
3 ★ 3
2 ★ 1
1 ★ 2
★ ★ ★ ★ ★

Vials arrived cold-packed and sealed. Labels are clean, batch number matches the paperwork.

Daniel M.
★ ★ ★ ★ ★

Ordered Tuesday night, plain brown box at my door in Ottawa by Friday morning. No branding anywhere.

Chris R.
★ ★ ★ ★ ★

The buy 2 get 1 applied itself in the cart exactly like the banner says. Watched the third one appear on its own.

Michael T.
★ ★ ★ ★ ★

Third order now. Same packaging, same speed, same quality every time. That consistency is why I stay.

Sarah K.
★ ★ ★ ★ ★

Was skeptical about ordering this kind of thing online but the whole process felt legit from cart to doorstep.

James P.
★ ★ ★ ★ ★

Customer support actually answered at 11pm on a Sunday. A real person, fixed my address typo in two minutes.

Ryan S.
★ ★ ★ ★ ★

Everything came bubble-wrapped with the vials in a foam insert. Nothing rattling around.

Melissa D.
★ ★ ★ ★ ★

Prices are right on the page, no games at checkout. Total matched to the cent.

Kevin B.
★ ★ ★ ★ ★

My GHK-Cu came with proper labeling and an intact seal. Exactly what the photos show.

Matthew H.
★ ★ ★ ★ ★

Fast. Like, faster than my usual pharmacy fast.

Jason C.
1 / 15

Research use & disclaimers

  1. This product is intended strictly for research and laboratory use only. Not for human consumption, medical use, or diagnostic purposes.
  2. Research summaries describe published laboratory and animal studies. They are not claims about the effects of this product and are not medical advice.
  3. Compound identifiers (sequence, formula, molecular weight, CAS) are reference values from PubChem and UniProt. Batch values come from the certificate of analysis, which relates only to the lot tested.
  4. Comparisons describe common practice in the research-peptide market and do not refer to any named company.