British Dragon
British Dragon
Boldabol
Product Information Compound Details
Active Substance Boldenone Undecylenate Long-Acting Testosterone-Derived Anabolic-Androgenic Steroid
200 or 300 mg/mLStrength 200 or 300 mg/mL
Package 10 mL Vial 2,000 mg or 3,000 mg Total Labeled Content
Form Oil-Based Injectable
Drug Class Anabolic-Androgenic Steroid
Estimated Half-Life Approximately 14 Days
Manufacturer British Dragon
Strength :
200 mg
300 mg
Shipping :
International
U.S. Domestic
Out of stock
- Overview
- Profile
- Usage
- Safety
- Shipping
- Storage
- FAQ
- Reviews
Product Overview
Boldabol by British Dragon
Boldabol is an oil-based injectable containing Boldenone Undecylenate, manufactured by British Dragon and supplied in 200 mg/mL or 300 mg/mL strengths in a 10 mL vial.
Boldenone Undecylenate Injectable
Boldabol contains boldenone undecylenate, an anabolic-androgenic steroid derived from testosterone. Boldenone differs structurally from testosterone by a double bond at the 1-position, which increases its resistance to metabolism and contributes to a long duration of action. The undecylenate ester further extends its release profile, with a biological half-life of approximately 14 days.
In medical practice, boldenone undecylenate is not approved for human use in most countries; it remains manufactured for veterinary applications, primarily in cattle, to promote weight gain and improve feed efficiency. In non-medical bodybuilding contexts, it is commonly referenced for lean mass gains, increased appetite, and enhanced endurance, though the very slow onset and long detection window are well documented.
A detailed analysis of underground lab products published in the Journal of Analytical Toxicology confirmed that British Dragon Boldabol 200 was labeled as containing boldenone undecylenate at 200 mg/mL . The compound is prohibited by WADA at all times, and detection windows of 5 months or longer have been reported. Such use falls outside approved indications.
Key Properties of Boldabol
- Long-acting undecylenate ester with a half-life of approximately 14 days
- Structurally related to testosterone with a 1-position double bond
- Commonly referenced for appetite stimulation and endurance support
- Available in 200 mg/mL and 300 mg/mL concentrations
- 10 mL vial provides 2,000 mg or 3,000 mg total labeled content
Carrier Oil
MCT Oil Formulation
Boldabol uses MCT oil as its carrier oil, providing the oil base for the boldenone undecylenate formulation. MCT oil is a commonly used carrier for injectable anabolic preparations, selected for its low viscosity and compatibility with esterified compounds.
Product Profile
Boldenone Undecylenate Profile
Boldenone undecylenate is a long-acting anabolic steroid derived from testosterone, distinguished by its slow release profile and pronounced effects on appetite and erythropoiesis.
Long-Acting Testosterone Derivative
Boldenone is structurally identical to testosterone except for a double bond at the 1-position and the absence of a methyl group at the 17-position. This structural modification reduces its androgenic potency relative to testosterone while maintaining anabolic activity. The undecylenate ester, an 11-carbon chain, significantly slows absorption from the injection site, resulting in a half-life of approximately 14 days.
Because of its long ester, boldenone undecylenate requires 6–8 weeks to reach stable blood levels, making it unsuitable for short cycles. Users typically reference cycle lengths of 12–20 weeks to allow the compound to fully express its effects.
Boldenone undergoes hepatic metabolism to active metabolites, including 1,4-androstadiene-3,17-dione, which may contribute to its effects. The compound is not a 17α-alkylated steroid and is therefore considered less hepatotoxic than oral anabolic steroids, though it still carries cardiovascular and hematological risks.
Release Profile
Slow Onset, Extended Duration
The undecylenate ester in Boldabol produces one of the slowest release profiles among injectable anabolic steroids. Blood levels accumulate gradually over 6–8 weeks before reaching steady state. After discontinuation, metabolites remain detectable for approximately 5 months, requiring careful PCT timing.
Boldabol vs Other British Dragon Preparations
British Dragon offers several injectable compounds with different release profiles. Decabol 250 contains nandrolone decanoate, a long-acting ester known for joint support and mass gains. Testabol Depot contains testosterone cypionate, a long-acting testosterone ester with a half-life of approximately 8 days. Trenabol 100 contains trenbolone acetate, a short-acting ester with a much faster onset but harsher side effect profile.
Boldabol's distinguishing characteristic among these compounds is its pronounced effect on appetite and red blood cell production, combined with a very slow release profile that requires extended cycles.
Dosage & Usage
Boldabol Dosage & Usage
The information below is provided for educational reference only. Boldenone undecylenate is not approved for human use in most countries. Non-medical use falls outside approved indications.
Typical Dosage Ranges
In non-medical bodybuilding contexts, boldenone undecylenate is commonly referenced in the range of 200 to 800 mg per week, with most users describing 400–600 mg weekly as a common range. Due to the long undecylenate ester, injections are typically administered once or twice weekly.
| Use Case | Common Reference Range | Injection Frequency |
|---|---|---|
| Conservative non-medical (reported) | 200–400 mg/week | 1–2 times weekly |
| Standard non-medical (reported) | 400–600 mg/week | 1–2 times weekly |
| Higher-dose non-medical (reported) | 600–800 mg/week | 2 times weekly |
These non-medical ranges represent community-reported practices and are not derived from controlled clinical trials for performance enhancement. Cycle duration is typically referenced at 12–20 weeks due to the slow onset of the undecylenate ester.
Stacking & Cycle Considerations
In non-medical bodybuilding contexts, boldenone undecylenate is frequently stacked with a testosterone base, such as Testabol Depot or Testabol Enanthate. The rationale is that boldenone's mild aromatization and appetite-stimulating effects complement testosterone's stronger anabolic and androgenic activity.
Some users reference stacking boldenone with Decabol 250 for complementary effects, though this increases overall HPT axis suppression and cardiovascular strain. Cycle structure, duration, and support compounds should be considered in the context of individual experience, health status, and bloodwork where possible.
Managing Side Effects
Boldenone undecylenate is associated with several significant side effects. The most clinically significant is a pronounced increase in hematocrit and red blood cell count, more so than with most other anabolic steroids. Regular monitoring of CBC is strongly recommended, and some users reference blood donation if hematocrit exceeds 0.52.
Increased appetite is a common effect that can be beneficial for bulking but counterproductive for cutting phases. Anxiety and restlessness, sometimes referred to as "EQ anxiety," are widely reported anecdotally, particularly at higher doses. Other potential effects include mild acne, oily skin, and suppression of endogenous testosterone production.
Post-Cycle Therapy (PCT)
Boldenone undecylenate suppresses endogenous testosterone production and requires post-cycle therapy to restore natural hormone levels. Because of the very long undecylenate ester, PCT should not begin until 4–5 weeks after the final injection to allow for ester clearance. Agents such as Clomiphene or Tamoxifen are commonly referenced for this purpose.
Important
Individual Response Varies
Boldenone undecylenate has no approved human use for performance enhancement. Any information about non-medical use is derived from user-reported practices and is not validated by controlled clinical research. This information does not constitute medical advice.
Safety & Information
Boldenone Undecylenate Safety Information
Boldenone undecylenate is not approved for human use in most countries. It is classified as a controlled substance in the U.S., U.K., Australia, and many EU nations.
Important Safety Information
Boldenone undecylenate is a veterinary anabolic steroid that is not approved for human use in most jurisdictions. The Spanish Agency for Health Protection in Sport has documented that boldenone undecylenate was never released for human use. The compound is classified as a controlled substance in the U.S., U.K., Australia, and many EU nations.
Boldenone undecylenate is prohibited by WADA at all times under S1.1 Anabolic Androgenic Steroids. Detection windows of 5 months or longer have been reported, making it particularly risky for tested athletes.
Important
Non-Medical Use
Non-medical use of boldenone undecylenate falls outside approved indications. Product purity does not establish that non-medical use is safe or appropriate for an individual.
Potential Adverse Effects
Boldenone undecylenate is associated with a pronounced increase in hematocrit and red blood cell count, more so than most other anabolic steroids. This can lead to polycythemia, with symptoms including persistent headaches, dizziness, blurred vision, and chest pain.
Increased blood pressure secondary to increased blood volume from erythrocytosis is also common. Cardiovascular strain, including potential deep vein thrombosis, is a concern.
Increased appetite is a common and often significant effect, which can be beneficial or hindering depending on goals. Anxiety and restlessness, sometimes called "EQ anxiety," are widely reported anecdotally, particularly at higher doses or in anxiety-prone individuals.
Other potential effects include mild acne, oily skin, and suppression of endogenous testosterone production.
Conditions Requiring Medical Evaluation
Boldenone undecylenate should not be used by individuals with polycythemia or elevated hematocrit above 50% at baseline, cardiovascular disease, coronary artery disease, history of thromboembolic events, hepatic impairment, prostate cancer, or pre-existing anxiety disorders.
Individuals with any of these conditions should discuss them with a qualified healthcare professional before considering any use.
Monitoring During Therapy
Because boldenone undecylenate has no approved human use for performance enhancement, no standardized monitoring protocols exist for non-medical use. In community harm-reduction contexts, regular monitoring of hematocrit, hemoglobin, and lipid profile is strongly recommended. A first hematocrit check is typically referenced around week 6–8 of a cycle.
Product Care
Storage & Handling
Store at controlled room temperature (20° to 25°C / 68° to 77°F). Protect from excessive heat, moisture, and direct light. Do not freeze. Inspect the vial and solution before use and do not use a product that appears damaged, contaminated, or otherwise abnormal. Keep out of reach of children.
Further Safety Information
Shipping & Authenticity
Shipping & Product Authenticity
Boldabol is supplied through the official British Dragon distribution chain and shipped in original manufacturer packaging with discreet, privacy-focused handling.
USA Domestic 3–5 business days
International 10–15 business days
Order Processing 24–48 business hours
Tracking Provided after dispatch
Direct Supply
Discreet Delivery & Original Packaging
The outer shipping package remains discreet, with privacy-focused handling and no unnecessary external product details. Products are supplied through the official British Dragon distribution chain.
What to Expect
- Orders are processed after payment confirmation
- USA Domestic shipping is typically faster when local stock is selected
- International orders include tracking, though update frequency may vary by destination
- Multiple warehouses may result in separate shipments when applicable
Authenticity Verification
To verify your Boldabol product, use the security code on the vial label and cross-check it on the British Dragon official site. Official British Dragon presentation and original packaging help reinforce product legitimacy and buyer confidence.
For complete delivery details, tracking policy, and reshipment terms, please see our Shipping Info page.
Storage
Boldabol Storage
Proper storage conditions help preserve formulation stability and overall product integrity throughout shelf life.
Recommended Conditions
Store at controlled room temperature (20° to 25°C / 68° to 77°F). Protect from excessive heat, moisture, and direct light. Maintaining stable conditions helps preserve the integrity of the oil-based formulation.
Keep the vial in its original packaging until use. Do not freeze. Before administration, inspect the solution and avoid use if it appears cloudy, discolored, contains particulate matter, or if the vial or seal is compromised.
Keep out of reach of children. Follow proper handling and sterile injection practices when administering the product.
Quick Reference
Do & Don't
- Do store at 20–25°C
- Do keep in original packaging
- Do inspect before each use
- Don't freeze the vial
- Don't expose to direct sunlight
- Don't use if solution looks abnormal
Frequently Asked Questions
Boldabol FAQ
Answers to common questions about Boldabol, boldenone undecylenate, release characteristics, product strength, and related topics.
What is Boldabol used for?
Boldabol contains boldenone undecylenate, an anabolic steroid not approved for human use in most countries. In veterinary medicine, it is used to promote weight gain and improve feed efficiency in cattle. In non-medical bodybuilding contexts, it is commonly referenced for lean mass gains, increased appetite, and enhanced endurance, though these uses fall outside approved indications.
How often should Boldabol be injected?
Due to the long undecylenate ester, injections are typically administered once or twice weekly. In non-medical contexts, weekly doses of 400–600 mg are commonly referenced, split into one or two injections.
Does Boldabol require PCT?
Yes, boldenone undecylenate suppresses endogenous testosterone production and requires post-cycle therapy to restore natural hormone levels. Because of the very long ester, PCT should not begin until 4–5 weeks after the final injection to allow for ester clearance. Agents such as Clomiphene or Tamoxifen are commonly referenced for this purpose.
What does Boldenone Undecylenate do?
Boldenone binds to the androgen receptor, regulating gene transcription. Its undecylenate ester slows release from the injection site, producing a half-life of approximately 14 days. The compound is known for increasing appetite, red blood cell production, and endurance.
How long does Boldabol take to work?
Due to the very slow undecylenate ester, blood levels accumulate gradually and require 6–8 weeks to reach steady state. Users typically report minimal noticeable effects during the first 3–4 weeks, with visible changes in body composition beginning around week 8–12.
Is Boldabol the best anabolic steroid?
There is no single anabolic steroid that is universally best, and boldenone undecylenate has not been validated in controlled human trials for performance outcomes. Its distinguishing characteristics include a very slow onset, pronounced appetite stimulation, and significant effects on hematocrit.
What is the difference between Boldabol and Decabol 250?
Boldabol contains boldenone undecylenate, while Decabol 250 contains nandrolone decanoate. Both are long-acting injectables, but boldenone is a testosterone derivative, whereas nandrolone is a 19-nortestosterone derivative. Boldenone is more commonly referenced for appetite and endurance, while nandrolone is often referenced for joint support and mass gains.
What is the difference between Boldabol and Testabol Depot?
Boldabol contains boldenone undecylenate, while Testabol Depot contains testosterone cypionate. Both are long-acting esters, but boldenone's undecylenate ester is even longer than cypionate, requiring 6–8 weeks to reach steady state. Testosterone is more strongly androgenic and aromatizes more readily than boldenone.
Is 300 mg of Boldabol a lot?
Boldabol is available in 200 mg/mL and 300 mg/mL concentrations. In non-medical contexts, weekly doses of 400–600 mg are commonly referenced, meaning multiple milliliters may be required per week. The 300 mg/mL concentration provides a higher dose per milliliter but does not change the overall weekly dose required.
What strength is Boldabol?
Boldabol is available in 200 mg/mL and 300 mg/mL strengths. It is supplied as an oil-based injectable in a 10 mL vial, giving 2,000 mg or 3,000 mg total labeled content per vial, manufactured by British Dragon.
Is Boldabol lab tested?
No lab reports were provided for this specific product listing. A published analysis of underground lab products in the Journal of Analytical Toxicology confirmed that British Dragon Boldabol 200 was labeled as containing boldenone undecylenate at 200 mg/mL .
Why is Boldabol slow to work?
The undecylenate ester is an 11-carbon chain that significantly slows absorption from the injection site, resulting in a half-life of approximately 14 days. This means blood levels accumulate very gradually, requiring 6–8 weeks to reach steady state and 12–20 week cycles to fully express the compound's effects.
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