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EquiTrex 350mg/ml 10ml Vial by Concentrex Labs
Brand Quality

EquiTrex 350mg/ml 10ml Vial by Concentrex Labs

5 (2 reviews)

EquiTrex is a high-concentration boldenone undecylenate injectable — 350 mg per millilitre in a 10 ml vial — engineered to serve distinct roles across both the blast and cruise phases of a structured performance cycle. Its extended ester release supports stable androgen exposure during lower-dose cruise periods while delivering meaningful anabolic output when dose is escalated during a blast. Quality assurance at Concentrex Labs is built on HPLC potency verification and LAL endotoxin screening; every released batch carries documented evidence of sterility and concentration accuracy.

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  • Supports lean, dry mass accrual during blast phases without excess water retention
  • 350 mg/ml concentration reduces per-week injection volume during long cruise windows
  • Extended ester release promotes hormonal stability across multi-month cruise-and-blast timelines
  • Appetite stimulation during blast phases aids caloric surplus adherence for mass-gaining goals
  • Erythropoietic activity contributes to endurance capacity — beneficial during high-volume blast training blocks
  • HPLC-verified concentration ensures dose accuracy across all ten millilitres of the vial
  • LAL endotoxin clearance reduces post-injection inflammatory responses during frequent administration schedules

Key takeaways

  • Plan blast-to-cruise transitions at least two weeks ahead due to boldenone's extended half-life.
  • Dose cruise phases conservatively to preserve bloodwork markers between blasts.
  • Draw each 2 ml blast dose with an 18-gauge needle for accurate volume.
  • Schedule bloodwork four weeks post-dose-reduction before assessing cruise baseline.
  • Verify every EquiTrex batch against its HPLC and LAL certificate of analysis before use.

Boldenone Undecylenate as a Cruise & Blast Compound

EquiTrex delivers boldenone undecylenate at 350 mg/ml — a formulation designed to function as a purposeful anabolic anchor across the two-phase cruise-and-blast training model rather than as a standalone single-cycle compound. Boldenone undecylenate provides a gradual, sustained androgen signal that aligns naturally with the long scheduling windows cruise-and-blast athletes typically operate within. Compared to shorter-ester anabolics such as propionate-based compounds, boldenone's undecylenate attachment reduces injection frequency demands during the cruise window, making protocol adherence more practical over multi-month timelines.

How Cruise & Blast Phase Separation Works with EquiTrex

The cruise phase serves as a maintenance window between intensive blast cycles; EquiTrex users typically run boldenone at a reduced weekly dose during this period to preserve lean tissue, maintain erythropoietic tone, and allow systemic recovery. The blast phase escalates the weekly dose to capitalise on boldenone's capacity to promote nitrogen retention, appetite stimulation, and gradual, dry lean-mass accrual. Concentrex Labs formulates EquiTrex at 350 mg/ml so that a 700 mg weekly blast dose — a common reference point among experienced blast-and-cruise practitioners — requires precisely 2 ml per week, confirmed via in-process HPLC volumetric calibration.

Transition Timing and Steady-State Considerations

Boldenone undecylenate carries a documented half-life of approximately 14 days, measured via plasma assay methodology; this extended elimination profile means that adjusting between cruise and blast doses requires forward planning of roughly two to three weeks before full plasma-level shifts are reflected. Athletes transitioning from blast back to cruise should account for this lag when scheduling bloodwork — ideally timing labs at four-week intervals post-dose reduction to capture a stable hormonal baseline. Concentrex Labs' LAL endotoxin test clears each EquiTrex batch for subcutaneous or intramuscular administration, a critical quality checkpoint for athletes injecting on long-duration protocols.

Brand Quality Standards at Concentrex Labs

Every EquiTrex vial is released against a certificate of analysis covering active pharmaceutical ingredient (API) identity, concentration, sterility, and endotoxin load — documentation that supports the Brand Quality positioning of the Concentrex Labs product range. The 350 mg/ml concentration was specifically validated by the Concentrex formulation team for carrier-oil compatibility at ambient and body temperatures, ensuring consistent draw volume and minimising injection-site discomfort across repeated administrations typical of cruise-and-blast schedules.

Usage

  1. Confirm phase positioning: determine whether you are entering a blast or cruise window before calculating your weekly EquiTrex dose, as the volume drawn differs significantly between phases.
  2. Draw preparation: warm the sealed EquiTrex vial briefly in your hands for 60 seconds to reduce oil viscosity; swab the rubber septum with 70 % isopropyl alcohol and allow 30 seconds to dry.
  3. Volume calculation: use the 350 mg/ml concentration as your reference — for a 700 mg blast week, draw exactly 2.0 ml using a 3 ml luer-lock syringe fitted with an 18-gauge draw needle.
  4. Needle swap and injection site: replace the draw needle with a 23–25 gauge, 1–1.5 inch needle before injection; rotate between glutes, quads, and delts across your weekly split injections to avoid scar tissue accumulation on long cruise-and-blast timelines.
  5. Injection technique: inject slowly (1 ml per 30 seconds) into the muscle belly; aspirate briefly before injecting to check for accidental intravascular placement, then apply gentle pressure post-injection.
  6. Post-injection protocol: log the date, site, dose, and batch number after each injection to maintain a usage record — particularly important during multi-month cruise-and-blast cycles where vial changeover and dose adjustment events need to be tracked accurately.

Warnings

Contraindications: EquiTrex is contraindicated in individuals with confirmed prostate or breast carcinoma, existing polycythaemia or elevated haematocrit above 52 %, severe hepatic impairment, or hypersensitivity to any component of the formulation including carrier oils. Women who are pregnant or breastfeeding must not use this product. Individuals with a history of thromboembolic events should not use boldenone undecylenate due to erythropoietic activity increasing whole-blood viscosity.

Side Effects: Common androgenic effects include acne, accelerated scalp hair thinning in genetically susceptible individuals, and increased sebum production. Boldenone undecylenate elevates erythropoietin production, which may increase haematocrit and red blood cell mass — a risk factor for hypertension and thrombosis on prolonged blast cycles. Oestrogen conversion is low relative to testosterone but non-zero; gynecomastia risk exists at high blast doses. Appetite stimulation, while often therapeutically useful, can complicate caloric control during cruise phases.

Monitoring: Haematocrit must be measured every 8 weeks during active use; values consistently above 50 % warrant dose reduction or therapeutic phlebotomy. Lipid panels (LDL/HDL ratio) and liver enzymes (ALT, AST) should be assessed at cycle entry, mid-blast, and at the start of each cruise phase. Blood pressure monitoring is recommended at least fortnightly during high-dose blast phases.

PCT: Because boldenone undecylenate has a plasma half-life of approximately 14 days, athletes choosing to exit the cruise-and-blast model entirely and begin post-cycle therapy (PCT) should wait a minimum of four weeks after the final injection before initiating a SERM-based recovery protocol. HPTA suppression depth correlates with total dose and blast duration — longer or higher-dose blast periods typically necessitate extended PCT windows of 6–8 weeks using agents such as clomiphene citrate or tamoxifen.

Frequently asked questions

What does a cruise and blast protocol mean for boldenone undecylenate users?
A cruise-and-blast protocol alternates between a high-dose blast phase — designed to maximise anabolic output — and a lower-dose cruise phase that maintains hormone levels while allowing partial physiological recovery. For boldenone undecylenate specifically, the long undecylenate ester makes it well suited to both phases: the sustained release reduces hormonal fluctuation during cruise and supports consistent lean-mass retention between blasts.
How long should the cruise phase last when running EquiTrex boldenone?
Cruise phase duration typically ranges from eight to sixteen weeks, depending on the individual's recovery markers, bloodwork, and upcoming blast scheduling. Because boldenone undecylenate has a plasma half-life of approximately 14 days (confirmed via pharmacokinetic assay data), dose adjustments take two to three weeks to fully stabilise — users should factor this into their cruise window planning rather than cutting the phase short.
When is the right time to switch from blast back to cruise with EquiTrex?
The blast-to-cruise transition is best triggered by a combination of target cycle duration being reached and bloodwork indicating haematocrit, lipid, or liver enzyme values approaching monitored thresholds. A practical approach is to reduce EquiTrex weekly dose by 50 % over one week rather than cutting abruptly, allowing plasma boldenone levels to taper gradually rather than drop steeply — a strategy that preserves lean tissue during the transition window.
How should EquiTrex 350mg/ml be drawn and injected using standard syringes?
EquiTrex at 350 mg/ml is an oil-based injectable; use an 18–21 gauge needle for drawing to ensure smooth aspiration of the viscous carrier oil, then switch to a 23–25 gauge needle for intramuscular injection to minimise injection-site trauma. For volume accuracy at 700 mg per week (2 ml), a 3 ml luer-lock syringe is recommended — this provides a clear graduated scale and reduces the risk of air bubble retention that can distort delivered dose.
How should an opened EquiTrex vial be stored to maintain sterility across a long cruise-and-blast cycle?
After first puncture, store the EquiTrex vial upright at room temperature (15–25 °C) away from direct light and humidity — refrigeration is not required and can increase oil viscosity, making drawing more difficult. Each draw should use a fresh, sterile needle to maintain septum integrity; the multi-dose rubber stopper is rated for multiple punctures, but swab the top with 70 % isopropyl alcohol before every use. Discard any vial showing particulate matter or cloudiness. (2) angle_used

Manufacturer

Concentrex Labs traces its roots to a founding principle of formulation specificity: rather than scaling a broad catalogue quickly, the brand invested early in concentration-specific engineering — producing high-mg/ml solutions that reduce injection burden for athletes on long-duration protocols. For EquiTrex, this heritage is directly relevant: the 350 mg/ml boldenone undecylenate specification was developed to serve the cruise-and-blast user base, where multi-month administration cycles demand both dose precision and vial efficiency. The brand's analytical release process applies HPLC quantification to confirm API concentration within tight tolerances, and each batch passes LAL endotoxin screening before leaving the facility — a two-stage quality checkpoint that reflects Concentrex Labs' documented commitment to release-stage verification over assumption-based manufacturing.

Product details

BrandConcentrex Labs
Active ingredientboldenone undecylenate
Also known asEquipoise, EQ, Boldenone Undecylenate, EquiTrex, Concentrex Labs Equipoise
Strength350 mg
FormVial
Pack size1 piece
Item numberINJ-BOLD-CON-350-003

Reviews

5/5

2 reviews

  • Rating: 5 out of 5 starsRyan30Verified purchase

    appetite went mental

    500mg/wk alongside 600mg test cyp for 20 wks. By week 5 I was eating everything in sight. RBC crept up so I donated blood at week 14 which sorted it. Dry lean gains, vascularity improved loads. Hematocrit peaked at 52% before the donation. Brilliant compound, brilliant product.

  • Rating: 5 out of 5 starsTom G.Verified purchase

    Lean gains, loved it

    Ran EQ at 600mg for 18 weeks on a recomp. Went from 94kg to 99kg while actually leaning out a bit. Bloodwork at week 10 showed test at 2,800 ng/dl with my test base. Wind does take a while to build but when it did the endurance in the gym was something else. Packaging was spot on, no dramas.

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