Zyvex Pharmaceuticals Cardarine GW-501516 20 mg Research Pack
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Oral · 20 mg/tab · 100 tabs
Zyvex Pharmaceuticals Dianabol is methandienone, the classic 17-alpha-alkylated oral anabolic, offered here in two strengths so both ends of the range sit on one page. Available for purchase in the following variants: Dianabol 20 mg and Dianabol 50 mg.
Supplied as sealed tablets. GMP-manufactured, each batch HPLC-verified with the Certificate of Analysis on file. Dianabol for sale with international shipping in a 4 to 10 day transit window.
Zyvex Pharmaceuticals Dianabol is methandienone in two tablet strengths, 20 mg and 50 mg, on a single page. Buy dianabol here if you want the traditional mass-building oral in one pack, and choose the strength that fits the smallest split you can keep. The fact file describes it as a classic 17-alpha-alkylated oral anabolic with a half-life of only 3 to 6 hours, moderate water retention and a high liver toxicity rating, which is why the sources cap an oral run at four to six weeks.
Methandienone is testosterone with a 17-alpha-methyl group, which lets it pass the liver intact and also makes it hepatotoxic, and a double bond arrangement that slows its own breakdown. It aromatises less than testosterone, but the estrogen it produces resists metabolism, so water retention and gynecomastia remain real concerns rather than theoretical ones, and community protocols pair it with an aromatase inhibitor such as Arimidex. Gains arrive fast and part of that weight is water, which is also why some of it leaves after the run ends and why a restart on Nolvadex or Clomid is standard practice in the literature.
The two packs hold the same molecule; the table shows what changes between the strengths.
| Formulation | Strength | Half-Life | Liver Load | Typical Use |
|---|---|---|---|---|
| Dianabol 20 mg | 20 mg per tablet | 3 to 6 h | High | Splitting across 2 to 3 daily units |
| Dianabol 50 mg | 50 mg per tablet | 3 to 6 h | High | Top of the range in a single unit |
Strength and appetite rise within the first week, part of the weight is water, HDL falls while LDL and blood pressure climb, and acne is a common note. The 17-alpha-alkylation is what limits cycle length to four to six weeks, and the 50 mg figure sits at the top of the range recorded in the file, above which nothing is confirmed. Detection runs from short metabolites at three days up to 19 days after a single 5 mg dose, with review estimates stretching to six weeks. For a drier oral route see the Zyvex Anavar page, and for an injectable base the Zyvex Testosterone esters.
Every batch is produced under GMP conditions and verified by HPLC, with the Certificate of Analysis kept for the lot. Keep the tablets in the sealed pack, away from heat and light. Purchase methandienone here as research material; it is not licensed for performance use.
For laboratory research only. Consult a healthcare professional before use.
| Brand | Zyvex Pharmaceuticals |
| Active Substance | Methandienone |
| Variants | Dianabol 20 mg and Dianabol 50 mg |
| Package | 100 tablets per pack, per variant chosen |
| Form | Oral tablets, 100 tablets per pack |
| Half-Life | 3 to 6 hours oral |
| Drug Class | 17-alpha-alkylated oral anabolic |
| Manufacturing | GMP-certified |
| Testing | HPLC per batch, COA on file |
| Shipping | International, 4-10 days transit |
Before you ask
It is methandienone, the classic 17-alpha-alkylated oral anabolic taken for fast size and strength. The fact file records an oral half-life of 3 to 6 hours, moderate water retention and a high liver toxicity rating, with cycle length limited to four to six weeks by the methyl group. This page carries two tablet strengths, 20 mg and 50 mg, of the same molecule.
The packs hold the same methandienone, so the choice is about splitting rather than potency. With a 3 to 6 hour half-life, the source material divides the daily total across two or three units, and the 20 mg tablet is built for that. The 50 mg tablet sits at the top of the range recorded in the fact file, so it leaves no room to work downward.
Three to six hours orally, which is the shortest half-life of the common oral anabolics. That short window is the reason traditional use splits the dose through the day, and it is also why the compound leaves the system quickly once stopped even though its metabolites linger much longer in a test sample. Short clearance and short detection are two different things.
Yes, several. Water retention is rated moderate, the estrogen produced resists metabolism so gynecomastia risk stays relevant, HDL falls while LDL and blood pressure rise, and acne is common. Liver toxicity is rated high, which is the most serious entry in the file, and endogenous testosterone is suppressed enough to require a recovery plan. Side-effect questions belong with a clinician.
The checked file gives three figures: short metabolites detectable for up to three days, up to 19 days after a single 5 mg dose, and review estimates stretching towards six weeks. The spread is wide because the metabolite, not the drug, is what a laboratory looks for. Anabolic agents are prohibited in sport, so a tested athlete should treat the longest figure as the working assumption.
Both strengths are listed on this page, with the variant chosen in the selector above. At the last check the 20 mg variant was listed at 56.00 USD and both strengths were out of stock, and international shipping is listed at 50.00 USD with a four to ten day transit window.
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