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Boldenone Undecylenate 300mg/ml 10x1ml Ampullen by Elbrus Pharmaceuticals
New Formula

Boldenone Undecylenate 300mg/ml 10x1ml Ampullen by Elbrus Pharmaceuticals

Elbrus Pharmaceuticals Boldenone Undecylenate 300mg/ml is a single-ingredient, oil-based intramuscular injectable that delivers the active anabolic steroid directly into systemic circulation — bypassing hepatic first-pass degradation entirely and achieving near-complete bioavailability that no oral boldenone formulation can match. Each carton contains ten single-dose 1ml ampoules, providing precise, contamination-free dosing across an extended cycle. Batch quality is enforced through HPLC-confirmed potency assays and LAL endotoxin screening; every ampoule released by Elbrus carries finished-product analytical data as the basis of its quality declaration.

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  • Near-complete systemic bioavailability achieved through intramuscular depot absorption
  • 300mg/ml concentration allows meaningful weekly doses in a compact 1ml injection volume
  • Ten sealed single-dose ampoules eliminate repeated-puncture contamination risk
  • No hepatotoxicity burden — the injectable route avoids the 17α-alkylation trade-off
  • HPLC-verified finished-product potency ensures the label concentration is pharmacologically real
  • LAL-tested batches meet injectable-grade endotoxin limits required for parenteral administration
  • New Formula designation reflects updated excipient optimisation for injection comfort and stability

Key takeaways

  • Choose injectable boldenone to bypass hepatic first-pass destruction entirely.
  • Verify bioavailability data via HPLC concentration confirmation on every batch.
  • Open each single-dose ampoule immediately before injection to preserve sterility.
  • Expect plasma concentrations that oral boldenone simply cannot replicate at any dose.
  • Confirm LAL endotoxin clearance before accepting any injectable anabolic product.

Why Bioavailability Defines the Value of Boldenone Undecylenate

Boldenone Undecylenate 300mg/ml by Elbrus Pharmaceuticals is an oil-based parenteral anabolic agent whose entire pharmacological rationale rests on one quantifiable fact: intramuscular delivery achieves close to 100% systemic bioavailability, a figure that oral boldenone preparations structurally cannot approach. When boldenone is administered orally, hepatic first-pass metabolism — the enzymatic processing a compound undergoes before reaching systemic circulation — destroys the overwhelming majority of active drug. Measured bioavailability figures for oral AAS with comparable lipophilicity and no 17α-alkylation protection typically fall below 10% in human pharmacokinetic models. Elbrus's injectable format eliminates that metabolic bottleneck at the point of administration.

First-Pass Metabolism: The Structural Barrier Oral Forms Cannot Overcome

Hepatic first-pass metabolism strips unprotected steroids of biological activity through cytochrome P450-mediated oxidation before the compound ever reaches skeletal muscle androgen receptors. The undecylenate ester on boldenone provides no meaningful oral protection — it is designed to slow hydrolysis in the depot, not to resist intestinal or hepatic enzymes. Compared to 17α-alkylated oral steroids, which accept the hepatotoxicity burden of first-pass resistance, non-alkylated boldenone injected intramuscularly delivers its full molecular payload into the bloodstream without hepatic attrition. The injectable route therefore produces plasma concentrations that are structurally impossible to replicate with an oral boldenone preparation at any practical dose.

Elbrus 300mg/ml: Concentration, Ampoule Format, and Analytical Verification

At 300mg/ml across ten single-dose ampoules, Elbrus Pharmaceuticals has engineered this presentation for consistency across every injection event. Single-dose glass ampoules prevent the repeated-puncture contamination risk associated with multi-dose vials; each 1ml unit is a sealed, sterile system used once and discarded. HPLC assay at the finished-product stage confirms that declared concentration corresponds to actual API content — not extrapolated from input weights. LAL (Limulus Amebocyte Lysate) endotoxin testing verifies injectable-grade sterility of each production batch. These two analytical checkpoints — HPLC concentration confirmation and LAL endotoxin clearance — are the primary evidence-based quality claims Elbrus attaches to this product.

Bioavailability Numbers in Context

Studies on esterified androgenic anabolic steroids administered intramuscularly consistently report systemic bioavailability in the 95–99% range, with the depot acting as a controlled-release reservoir rather than a metabolic loss point. This reservoir function — hydrolysis of the ester in muscle tissue releasing free boldenone — is distinct from and compatible with the bioavailability advantage: absorption efficiency and release rate are separate pharmacokinetic variables, both optimised by the injectable ester format.

Usage

  1. Confirm ampoule integrity before every injection — inspect for visible particulates, cloudiness, or seal damage; discard any compromised unit immediately.
  2. Warm the ampoule to body temperature by holding it in your palm for 60–90 seconds if the oil appears viscous, which improves draw and injection flow without altering the compound.
  3. Draw the full 1ml into a fresh syringe using an 18–21G draw needle; switch to a 23–25G, 1–1.5 inch injection needle to minimise post-injection site discomfort.
  4. Inject intramuscularly into the gluteus medius, vastus lateralis, or deltoid using strict aseptic technique — aspirate briefly, then deliver the oil slowly over 20–30 seconds to reduce injection-site pressure.
  5. Rotate injection sites across the weekly schedule; because injectable boldenone delivers near-100% bioavailability, consistency of technique matters more than compensating for absorption losses.
  6. Dispose of the opened glass ampoule and used needles in a sharps container immediately after each injection; never re-use needles or attempt to store a partially drawn syringe.

Warnings

Contraindications: Not for use in individuals with known androgen-sensitive malignancies, elevated haematocrit (above 50% at baseline), severe cardiovascular disease, active hepatic impairment, or hypersensitivity to any component of the oil-based vehicle. Women of childbearing potential should not use this product due to virilisation risk.

Side Effects: Erythropoietin-driven haematocrit elevation is the most cycle-characteristic concern with boldenone; elevated red blood cell mass increases blood viscosity and places additional load on the cardiovascular system. Androgenic effects include accelerated scalp hair loss in genetically susceptible individuals and acne. Endogenous testosterone suppression occurs at all clinically relevant doses. Aromatisation to oestradiol proceeds at a reduced rate relative to testosterone, though oestrogen-related effects remain possible at higher weekly doses.

Monitoring: Full blood count including haematocrit and haemoglobin should be assessed at cycle baseline and at six-week intervals during use. Lipid panel (LDL/HDL ratio), liver enzymes, and blood pressure should be checked at the same intervals. Any haematocrit reading above 52% warrants dose reduction or cycle suspension pending clinical review.

PCT: Post-cycle therapy should be initiated after allowing sufficient time for plasma levels to decline following the final injection — the long-acting ester requires a waiting period before SERM-based PCT (clomiphene citrate or tamoxifen) can be effective. A standard 4-week PCT protocol should follow; consult an endocrinologist if LH/FSH recovery is not confirmed by lab testing within 12 weeks of PCT completion.

Frequently asked questions

Why does injectable boldenone undecylenate have higher bioavailability than oral boldenone?
Intramuscular injection deposits the compound directly into vascularised muscle tissue, from which it is absorbed into systemic circulation without passing through the liver first. Oral boldenone — lacking 17α-alkylation — is largely inactivated by hepatic cytochrome P450 enzymes before it reaches the bloodstream. The injectable route consistently delivers 95–99% of the administered dose into circulation; oral equivalents achieve a small fraction of that figure.
What exactly is first-pass metabolism and how does it affect boldenone taken orally?
First-pass metabolism is the hepatic enzymatic processing a drug undergoes after intestinal absorption but before it enters systemic circulation. For non-17α-alkylated steroids like boldenone, these liver enzymes oxidise and conjugate the molecule, rendering it pharmacologically inactive. Because the undecylenate ester does not confer hepatic resistance, oral dosing produces negligible plasma concentrations of active boldenone — making the injectable format the only pharmacologically effective delivery route.
How does absorption after intramuscular injection differ from what would happen if boldenone were swallowed?
After IM injection, the oil depot releases boldenone undecylenate slowly into surrounding tissue, where local esterases cleave the undecylenate chain to yield free boldenone that enters capillary blood directly. The liver only encounters this drug after it has already circulated, at which point first-pass enzymatic capacity is not concentrated in a single pass. Oral administration reverses this sequence — hepatic exposure is first, highest-concentration, and most destructive.
Why are single-dose 1ml ampoules preferable to a multi-dose vial for injectable boldenone?
Each sealed glass ampoule is a sterile, single-use unit: once opened, the entire contents are drawn and the ampoule discarded. Multi-dose vials require repeated needle punctures through a rubber septum, each of which introduces a theoretical contamination vector. For a compound injected on a weekly or twice-weekly schedule over many weeks, the cumulative sterility advantage of ten individual sealed ampoules is practically meaningful.
What are the recommended storage conditions for Elbrus Boldenone Undecylenate 10x1ml ampoules?
Store ampoules at 15–25°C in a dry location away from direct light; oil-based injectable preparations can precipitate or degrade if exposed to temperatures below 8°C or above 30°C for extended periods. Do not freeze. Inspect each ampoule visually before use — discard any unit showing particulate matter, discolouration, or a compromised seal. Once opened, the single-dose format means no partial-dose storage decisions are required. (2) angle_used

Manufacturer

Elbrus Pharmaceuticals entered the injectable anabolic market with a brand identity built on a defined geographic and commercial positioning: European-oriented distribution anchored by an Eastern European production base with access to established pharmaceutical manufacturing infrastructure. The brand's founding narrative is not centred on novelty compounds but on execution quality for established molecules — a deliberate choice reflecting the reality that the credibility gap in this product category is most often a manufacturing and testing failure, not a molecule failure. For Boldenone Undecylenate 300mg/ml specifically, Elbrus applies its standard finished-product release protocol: HPLC potency confirmation maps actual API content against the declared label concentration, and LAL endotoxin testing provides batch-level sterility evidence. The brand's commercial history reflects consistent positioning toward documented, verifiable quality claims rather than marketing-led differentiation — a stance that aligns with the increasing analytical literacy of the performance market Elbrus targets.

Product details

BrandElbrus Pharmaceuticals
Active ingredientboldenone undecylenate
Also known asEquipoise, EQ, Boldenone Undecylenate, Boldenonee Undecylenatee, Elbrus Pharmaceuticals Equipoise
Strength300 mg
FormAmpullen
Pack size10 pieces
Item numberINJ-BOLD-ELB-300-007

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