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Proper Labs
In stock

Proviron

50TABS25MG
Mesterolone (Proviron), an oral androgen for hardness and free testosterone support.
£40.00 Save 8%
£36.90
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Usage Oral

Performance Profile

/ 5
  • Strength2
  • Keep gains3
  • Popularity3
  • Weight gain1
  • anti estrogen3
  • Fat / water loss2

Frequently Asked Questions

What is Proviron and what does it do?
Proviron is the brand name for mesterolone, an oral DHT-derived compound. It binds strongly to SHBG (sex hormone-binding globulin), which frees up more active testosterone in the blood, and it also binds directly to the androgen receptor. Users typically run it for a harder, drier look and to support libido rather than for raw size.
How is Proviron from Proper Labs typically dosed?
As a guide only, and not medical advice, most users start around 25 mg per day taken orally in the morning, sometimes moving to 25 mg twice daily after a couple of weeks if it is well tolerated. Cycles commonly run 8 to 12 weeks. Any dosing decision should be made with your own research and, ideally, input from a doctor.
Does Proviron suppress testosterone, and do I need a PCT?
Yes, Proviron suppresses natural testosterone production, so it is normally run alongside a testosterone base rather than on its own. A PCT is generally recommended, such as nolvadex 40 mg daily for 2 weeks tapering to 20 mg for 2 more weeks, or clomid 50 mg daily for 4 weeks, started roughly 2 weeks after the last dose if a long ester testosterone was used.
What side effects should I be aware of with Proviron?
Reported side effects include hair thinning in those already prone to male pattern baldness, lowered HDL cholesterol, increased irritability, and testosterone suppression as noted above. Unlike most oral steroids, mesterolone is not 17-alpha-alkylated, so it is not considered notably hard on the liver. Bloodwork before, during, and after a cycle is the sensible way to track how your body is responding.
How does Proviron differ from other oral anti-oestrogen or PCT-style compounds?
Unlike aromatase inhibitors such as anastrozole, Proviron does not lower oestrogen through enzyme inhibition. Instead it works by binding SHBG and the androgen receptor, so it is used more for hardness, vascularity, and libido support than as a primary oestrogen control tool. Many users stack it with anastrozole when running compounds that aromatise heavily.
Is this genuine Proper Labs Proviron, and how fast will it arrive?
Every box is authentic Proper Labs stock with its own verification check-code so you can confirm it is the real product. Orders are dispatched from our UK warehouse on Royal Mail Tracked 24 in plain, discreet packaging, with same-day dispatch if payment clears before midday on a working day. Most customers across the UK see their parcel land within 1 to 2 working days.