Proviron

Proviron is the brand name for mesterolone, an oral DHT-derived compound made by Pharmaqo Labs at 25mg per tablet. It binds strongly to SHBG, which frees up more active testosterone in the blood, and it also binds androgen receptors directly to add muscle hardness and support libido. Unlike most oral steroids it is not 17-alpha-alkylated, so it carries a much lower liver strain than compounds like Dianabol or Anadrol.

As a guide only, a common approach for a first cycle is 25mg taken twice daily, 50mg total, for around 8 weeks, taken with food to reduce stomach irritation. Proviron is not run above 100mg per day and is not treated as a standalone compound. This is general dosing information, not medical advice, and anyone using it should get a proper plan from a doctor.

No. Proviron does not aromatise into oestrogen, so it does not need an AI to control its own oestrogen output. It is sometimes stacked with anastrozole anyway to help manage oestrogen from the rest of the cycle, but that is a choice about the other compounds, not something Proviron itself requires.

Reported effects include hair thinning in men already prone to it, lowered HDL cholesterol, mild liver enzyme elevation, and suppression of natural testosterone production. Because Proviron suppresses natural test, PCT is required after stopping, typically nolvadex at 40mg daily for 2 weeks then 20mg daily for 2 weeks, started around 2 weeks after the last dose if used with a long ester testosterone. Baseline and on-cycle bloodwork covering testosterone, SHBG, oestradiol, lipids, and liver function is strongly recommended, with LH and FSH checked post-cycle to confirm recovery.

Proviron is not a standalone anabolic and is always paired with a testosterone base to keep androgen levels normal, since it does not provide enough anabolic effect by itself. This is different from a compound like trenbolone, which is a powerful standalone anabolic that also does not aromatise, whereas Proviron's role is purely supportive alongside test rather than a primary driver of mass.

Every box carries a verification check-code so you can confirm it against genuine Pharmaqo Labs stock before use. Orders ship from our UK warehouse via Royal Mail Tracked 24 in plain, discreet packaging, with most UK orders arriving in 1 to 2 working days. Order before noon on a working day and it goes out same-day.