Product Overview
Dragon Pharma Boldenone Undecylenate is sold on one card as EQ 300 and EQ 500, two oily solutions for deep intramuscular injection at 300 and 500 mg per ml, each a 10 ml multi-dose vial. Both packs hold the same compound and the same ester, so the only thing that changes between them is concentration.
Boldenone is a testosterone-derived androgen with a long undecylenate chain and a biological half-life of roughly 14 days, which is what shapes every cycle built around it. It is chosen for slow, steady quality mass and for the appetite and endurance effects rather than for a fast cosmetic change, and it suits users who can plan four months ahead. The text below is reference material, not medical advice.
EQ 300 - The Standard Strength
EQ 300 carries 300 mg of boldenone undecylenate per ml. Reference weekly totals climb from 200-300 mg in the first 12-14 week block through 300-400 mg and up to 400-600 mg for experienced users on 14-16 week runs. Because the ester releases slowly, the visible effect is usually reported from week 6 to 8, so a shorter frame simply ends before the depot has done its work.
It is the pack for a first boldenone block and for a weekly total in the 200 to 400 mg band, where smaller steps are easier to draw. A 10 ml vial holds 3000 mg, ten weeks at 300 mg weekly and seven and a half at 400 mg.
EQ 500 - The Concentrated Pack
EQ 500 is the same ester at 500 mg per ml, which halves the oil volume needed for a given weekly total and reduces the number of injection sites. Dosing, cycle length and monitoring do not change; the higher concentration is simply a convenience for users who run the 400 to 600 mg range and would rather draw less oil. The pack suits experienced users who already know their tolerance.
It becomes the sensible half once the weekly total reaches 400 mg and above, where less oil means fewer injection sites. The same week drawn at 500 mg per ml needs three fifths of the volume of the 300 mg pack, and one 10 ml vial holds 5000 mg, ten weeks at 500 mg weekly. Water retention stays low at either strength, since that belongs to the molecule and not to the concentration.
Mechanism of Action
The molecule aromatizes at only a fraction of the testosterone rate, so the water retention that dominates a testosterone cycle is largely absent and the look stays relatively dry. Boldenone also stimulates erythropoiesis, which is why training volume and endurance tend to improve alongside size, and appetite commonly climbs with it. It is not 17-alpha alkylated, so the monitoring that matters is hormone and lipid blood work rather than liver enzymes. A testosterone ester such as Enantat 250 remains the usual base underneath, with Arimidex reserved for cases where estradiol actually rises.
Dosage and Cycle Guidelines
Dose is written in milligrams each week and split across at least two injections, because the volume per site matters at either strength.
| Entry level | 200-300 mg weekly, 12-14 weeks; the lower boundary, with a slow onset |
| Intermediate | 300-400 mg weekly, 14-16 weeks, inside the 200-600 mg vendor guide |
| Advanced | 400-600 mg weekly, 14-16 weeks; totals above 600 mg are not confirmed by the sources |
| Administration | Intramuscular, at least twice weekly, rotating sites; the 14-day ester builds a long depot |
Stacking and Support
Boldenone is normally stacked under a testosterone base, and the pair covers quality mass without the water of a heavier cycle. A second option is to add an oral such as Anavar 10 for the closing weeks, or to compare a shorter mass injectable in the form of Deca 300. Support during the block is straightforward: an aromatase inhibitor if estradiol asks for one, plus lipid and blood pressure checks.
Post-Cycle Therapy
Boldenone suppresses the axis, and the long ester means therapy starts later than a shorter cycle would suggest.
Side Effects and Precautions
The profile is mild by the standards of the class, but the long ester and the erythropoietic effect are the two things that need watching. This is not a beginner compound and it is a poor fit for anyone subject to testing.
Which Strength to Choose
EQ 300 and EQ 500 are the same compound and the same ester, so there is no pharmacological argument for one over the other. The 300 mg pack is the natural entry and gives finer control of small adjustments; the 500 mg pack suits users in the 400 to 600 mg range who want less oil per injection and fewer sites. Cycle length, base testosterone and monitoring are identical either way.
Blood Work and Buying
During a boldenone block the tests that matter are estradiol, a lipid profile, a blood count and blood pressure. The two strength packs are listed in the Dragon Pharma brand section with the testosterone bases and support products, so one catalogue covers the block.
