Authorised Source Warning: Hemi Pharma Proviron (Mesterolone) 25mg is sold exclusively through hemipharmauk.uk. We have identified websites including hemipharma.uk, hemipharmashop.to and hemipharma.store using our brand name to sell unauthorised products. These sites are not operated by us, not affiliated with us, and not authorised to sell Hemi Pharma products in any capacity. Products sold through these or any other third-party site carry no batch certificate, no QR verification and no authorisation from us. Verify your product by scanning the QR code on the blister pack before opening. If the scan returns no result, do not use the product and contact us immediately. ★ Read all 200 Verified Customer Reviews Buy Hemi Pharma Proviron (Mesterolone) 25mg | UK Stock Hemi Pharma Proviron contains Mesterolone, a DHT-derived oral androgen produced at 25mg per tablet. Every blister pack carries a unique QR code connected directly to the Hemi Pharma manufacturer database, confirming the batch number, compound and declared strength before the seal is broken. Product Specifications Active Ingredient Mesterolone Common Name Proviron Classification Oral Androgen (DHT Derivative) Strength 25mg per tablet Active Half Life 12 hours Standard Dosage 25mg to 150mg per day Aromatization None Hepatotoxicity Very low Testosterone Suppression Minimal at moderate doses Batch Testing Every batch of Hemi Pharma Proviron 25mg is submitted to Janoshik Analytical, an independent laboratory based in Prague, before entering the UK market. Janoshik uses HPLC and mass spectrometry to confirm that the active ingredient is mesterolone and to measure the exact concentration per tablet. The full certificate is published on the Hemi Pharma lab results page and is independently verifiable at janoshik.com using the unique code printed on the document. Why Hemi Pharma Proviron Proviron is one of the most frequently underdosed or substituted oral compounds sold under established brand names because the visual difference between a correctly dosed and an incorrectly dosed tablet is undetectable. Every batch of Hemi Pharma Proviron is independently verified by Janoshik before sale. The certificate is public. The batch code on the blister links to our own database. No third-party listing for Hemi Pharma Proviron can show you any of this, because they do not have access to our manufacturer data. What Proviron Does Mesterolone is a DHT-derived compound that binds strongly to sex hormone binding globulin (SHBG), the protein that renders testosterone inactive by binding to it in the bloodstream. By displacing testosterone from SHBG, Proviron increases the proportion of free, bioavailable testosterone in circulation. At a dose of 50mg per day, this effect is meaningful and is the primary reason experienced users add Proviron to a cycle rather than increasing the testosterone dose itself. Proviron does not aromatize, carries inherent anti-estrogenic properties, and produces a hardening and drying effect on muscle through its androgenic activity. It is widely used in cutting cycles, during blasts, during TRT add-on protocols and during post cycle therapy where estrogenic control and libido support are both needed simultaneously. Benefits Increased free testosterone throughout a cycle produces better results from the compounds already being used without adding more compound. Muscle hardness and density improve as free androgens rise. Libido and general wellbeing improve noticeably within the first one to two weeks, which is one of the most consistently reported benefits across all user groups. Estrogenic control is enhanced because mesterolone competes with oestrogen at the aromatase enzyme, partially inhibiting conversion of testosterone to oestrogen. This makes Proviron a useful addition to cycles where an AI is being used but where oestrogen management has not been fully resolved. It stacks particularly well with Hemi Pharma Testosterone Enanthate and Hemi Pharma Drostanolone Propionate in cutting protocols, and alongside Hemi Pharma Tamoxifen in PCT. Side Effects Proviron is well tolerated at standard doses. Hepatotoxicity is very low, significantly lower than most oral steroids. Androgenic side effects including acne, oily skin and accelerated hair loss are possible in genetically predisposed individuals due to the DHT-derived nature of the compound. Testosterone suppression at doses of 25mg to 75mg per day is minimal, which is why it is one of the few oral compounds that can be used continuously without the full suppression associated with most anabolic steroids. It is not recommended for female users due to its strong androgenic nature and risk of virilization. Contraindications. Do not use if you have prostate cancer, liver disease or a history of cardiovascular issues. Consult a medical professional before use. Cycle Guide Proviron has a half life of approximately 12 hours, making twice-daily dosing optimal. Standard performance doses range from 50mg to 100mg per day split into two doses. At 25mg per tablet, a 50mg per day protocol requires two tablets daily and a 100mg per day protocol requires four tablets daily. Proviron is typically run for the duration of a cycle rather than in isolation. It is added to cycles containing compounds that suppress libido, particularly nandrolone-based compounds, and to cutting cycles where maximum muscle hardness and minimum estrogenic activity are the goal. View the full Hemi Pharma oral range and PCT range for compatible compounds. Frequently Asked Questions What does Hemi Pharma Proviron do? Proviron binds to SHBG, increasing free testosterone in circulation. It also carries anti-estrogenic properties and produces muscle hardness and density improvements through its androgenic activity. It is used to improve cycle results, control oestrogen, support libido and harden the physique during cutting protocols. Has Hemi Pharma Proviron 25mg been independently tested? Yes. Every batch is independently tested by Janoshik Analytical before UK market entry using HPLC and mass spectrometry. The full certificate is published on the Hemi Pharma lab results page and independently verifiable at janoshik.com. Where can I buy Hemi Pharma Proviron in the UK? Hemi Pharma Proviron 25mg is sold exclusively through hemipharmauk.uk. Any listing on any other website, marketplace or third-party store is not authorised by Hemi Pharma. Order direct from hemipharmauk.uk for in-stock product at £35.99 with next-day UK delivery. Can Proviron be used during post cycle therapy? Yes. Proviron is commonly used during PCT alongside Tamoxifen and Clomiphene Citrate to support libido and free testosterone levels during recovery, and to manage any residual estrogenic activity. Its minimal suppression profile makes it suitable for this purpose. Does Proviron suppress testosterone? At standard doses of 25mg to 75mg per day, testosterone suppression is minimal. This is one of the characteristics that distinguishes Proviron from most other oral anabolic compounds and makes it suitable for extended use throughout a cycle. How quickly is Hemi Pharma Proviron 25mg delivered in the UK? Orders placed before 2pm Monday to Friday are despatched the same day via Royal Mail Tracked 24 and delivered the next working day to UK addresses. Free UK shipping is available on orders over £100. All orders are shipped in plain outer packaging with no indication of contents.