Proviron (Pharma)

Proviron (Pharma) is a pharmaceutical-grade mesterolone preparation supplied as 20 x 25mg tablets. Proviron is a support compound rather than a growth compound, it works by binding SHBG and freeing testosterone that is already present. UK dispatch, tracked delivery.

Proviron (Pharma) Specifications

Proviron (Mesterolone) 25mg: pharmaceutical grade

Proviron (Pharma) Research Areas

• Raises free testosterone: Binds SHBG strongly, leaving more of the testosterone already present active
• Mild anti-oestrogenic effect: Competes at the aromatase enzyme, useful, but not a replacement for a proper AI
• Hardening: Reported on a lean physique; does almost nothing visible on a soft one
• Minimal anabolic contribution: Nobody runs this for tissue, it makes a base work harder

How Proviron (Pharma) Works

Mesterolone binds sex hormone binding globulin, which is what holds testosterone in circulation in an unusable bound state. Occupying SHBG leaves a greater share of that testosterone free and active.

So proviron does not add hormone. It makes more of what is already there available, which is why it is run alongside a base rather than on its own.

Proviron vs an Aromatase Inhibitor

Proviron’s weak anti-oestrogenic activity gets it discussed as a light alternative to an AI. Treat that carefully, on a cycle that genuinely needs oestrogen control, an aromatase inhibitor is the correct tool and proviron is not a substitute.

Where proviron earns its place is the SHBG effect, which an AI does not provide at all.

Read Before You Buy

• Proviron explained
• Aromatase inhibitors compared
• Bloodwork: what to test

Why Choose Proviron (Pharma)?

Pharmaceutical-grade tablets, consistent presentation and a traceable source. Dispatched from the UK with tracked delivery.