David C.Verified buyer
Reply from SteroidsCanada
Five stars, thank you, David! We appreciate you ordering the Proviron 20mg from us.
ZIONOVA
Zionova Proviron 20mg (50 tablets)
Mesterolone · 20 mg
5.003 reviewsPER BOTTLE$126CAD
$2.52 per tablet
$2.52 per tablet
Zionova Proviron 20mg (50 tablets): Mesterolone, 20 mg per tablet, 50 tablets. Ships from inside Canada in plain packaging, with tracking within 72 hours; free Canada Post shipping over $300.
Ships from inside CanadaTracking in 72 h
Canada Post Xpresspost$30Free over $300
UPS or FedEx$60Free over $1,000
Plain box, tracked · Interac e-Transfer · card or Google Pay after your first order
Product label
Proviron 20mg (50 tablets)ZIONOVA · SC-13013Ships from CanadaSealed- Compound
- Mesterolone
- Strength
- 20 mg per tablet
- Pack
- 50 tablets
- Total per order
- 1,000 mg
- Half-life
- About 12 hours
- Form
- Tablets
About Zionova Proviron 20mg (50 tablets)
Mesterolone (Proviron) is an oral DHT derivative prescribed in some countries for low testosterone and male infertility. It is not 17-alpha-alkylated, so it is gentler on the liver than most orals.
Zionova: Each order is 50 tablets, 20 mg each (1,000 mg in total).
Commonly used for
- Libido support
- Prescribed abroad for low testosterone and male infertility
- A mild androgen with little effect on muscle size
Compound profile
Mesterolone
- Formula
- C20H32O2
- Molecular weight
- 304.5 g/mol
- CAS number
- 1424-00-6
- PubChem
- CID 15020
How it works
It binds androgen receptors and SHBG, freeing up other testosterone, and does not convert to estrogen. It suppresses natural production only mildly at label doses.
Half-life: about 12 hours.
Release profile
How levels rise and fall after a single dose, based on a half-life of about 12 hours. Each mark on the axis is one half-life; after about five, almost none is left.
An illustration from the half-life only; real levels vary with dose, food, how quickly it is absorbed and the person.
Clinical reference dose
Clinical reference: where Proviron is prescribed, the label dose is 25 mg one to three times a day at first, then 25–50 mg a day to maintain.
25 mgabout 1.25 of a tablet
Tablets here are 20 mg each.
Each tablet here is 20 mg.
These are reference amounts from labels and clinical studies, not a personal recommendation. A doctor sets the right dose for you, using your bloodwork.
Measuring calculator
Enter the amount you have been prescribed or are working from, and this works out exactly what to measure from this product. It doesn’t suggest an amount.
Measure—Enter an amount
- —
- —
Arithmetic only, from the strength on this product’s label. Check the label on your vial or bottle, follow your prescriber, and ask a pharmacist if you’re unsure how to measure.
Combinations and interactions
Often compared or used with
- Often taken alongside testosterone for libido and its mild anti-estrogen effect.
- Not a substitute for an aromatase inhibitor if estradiol is genuinely high.
Interactions to know
- Finasteride: does not affect mesterolone, which is already DHT-based.
Tell your doctor and pharmacist about everything you take, including supplements, before adding anything new.
Side effects and risks
Hair loss and acne
DHT-type effects on scalp and skin.
Prostate
Can enlarge the prostate.
Cholesterol
Mild HDL drop.
Don’t use it if you
Are under 18, a woman, or have prostate cancer or an enlarged prostate.
In Canada: Anabolic steroids are Schedule IV substances under the Controlled Drugs and Substances Act. Possessing them for personal use isn’t an offence; trafficking, importing and exporting without authorization are.
Bloodwork checklist
- Complete blood count (hematocrit, hemoglobin)
- Lipid panel (HDL, LDL, triglycerides)
- Liver enzymes (ALT, AST)
- Kidney function (creatinine, eGFR)
- Testosterone, sensitive estradiol, LH and FSH
- PSA if you are over 40
- Blood pressure at home, weekly
Your family doctor can order these, or you can pay for private testing at labs such as LifeLabs or Dynacare. Test before you start, after 6–8 weeks, and again after you stop.
Common questions
Does Proviron build muscle?
Very little; it is used for libido and as a supporting androgen.
How fast does it ship?
Orders ship from inside Canada with a tracking number within 72 hours of payment. Weekend orders are packed on Sunday or Monday. Canada Post Xpresspost takes 2–5 business days to most cities; UPS or FedEx is faster. Shipping is free by Canada Post over $300 and by UPS or FedEx over $1,000.
How is it packaged?
In a plain box with no product names or branding on the outside.
Is mesterolone legal in Canada?
Anabolic steroids are Schedule IV substances under the Controlled Drugs and Substances Act. Possessing them for personal use isn’t an offence; trafficking, importing and exporting without authorization are.
Sources
- Mesterolone and idiopathic male infertility: a double-blind study. World Health Organization Task Force on the Diagnosis and Treatment of InfertilityWHO Task Force · Int J Androl · 1989 · PMID 2680994
- Androgens versus placebo or no treatment for idiopathic oligo/asthenospermiaVandekerckhove P et al. · Cochrane Database Syst Rev · 2000 · PMID 10796496
Chemical data and structures: PubChem, U.S. National Library of Medicine. Protein sequences: UniProt.
Specifications
| Compound | Mesterolone |
|---|---|
| Strength | 20 mg per tablet |
| Pack | 50 tablets |
| Total per order | 1,000 mg |
| Half-life | About 12 hours |
| Form | Tablets |
| Brand | Zionova |
| SKU | ZionovaProviron |
Reviews
5.003 rated reviews
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JaredVerified buyer
Reply from SteroidsCanada
Five stars, thank you, Jared! We appreciate you ordering the Proviron 20mg from us.
Eddie M.Verified buyer
Reply from SteroidsCanada
We really appreciate the five stars, Eddie! Thanks for trusting us with your Proviron 20mg order.
Reviews come from verified buyers only. After your order arrives we email you a link to review it.
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This information is educational and is not medical advice. Talk to a doctor or pharmacist before using any hormone, peptide or prescription drug. For adults 18+ only.