Zyvex Pharmaceuticals Equipoise EQ 300 and EQ 500 Boldenone Vials

It is boldenone undecylenate supplied by Zyvex Pharmaceuticals in two concentrations, EQ 300 at 300 mg/ml and EQ 500 at 500 mg/ml, both in 10 ml vials. Boldenone undecylenate is a long-acting injectable androgen that is used in veterinary medicine in several markets and is not a licensed human medicine, so the vials here are sold as laboratory research material.

The ester is identical, so this is a question about oil volume. EQ 300 is easier to measure when a weekly total is split into two injections and is the conventional pick for a fourteen to sixteen week block. EQ 500 puts the same milligrams into fewer millilitres, which helps when equipoise is stacked with another injectable, but a 500 mg/ml solution is thicker and some users notice the injection site more.

The biological half-life is about fourteen days after intramuscular injection, which is why once or twice weekly dosing is enough and why the compound keeps working long after the last shot. That same length is the reason a block runs fourteen to sixteen weeks rather than eight, and why a recovery plan has to wait several weeks after the final injection before it begins.

Natural testosterone production is suppressed like with any injected androgen, so recovery is planned rather than hoped for. Aromatisation is low, so water retention is uncommon and an aromatase inhibitor is rarely required at moderate totals, though it is not impossible. Appetite usually rises, which is a benefit in a mass block and a problem in a cut, and the compound is a substrate of 5-alpha reductase, so blood pressure and lipid values are worth tracking on bloodwork.

The undecylenate ester gives boldenone one of the longest detection windows in the class. Vendor and review material checked for this card reports urine detection of up to five months, while some reference tables put it considerably longer, so the honest statement is that the sources disagree. Anyone subject to drug testing should treat boldenone as incompatible with competition rather than count on a window.

EQ 300 and EQ 500 are both listed on this page as research material, with international shipping in the selector above. Price and stock appear per variant once you choose one. International shipping is listed at 50.00 USD with a transit window of four to ten days and orders are handled within one to two business days; at the last check every option on this page was out of stock.