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Boldenone Undecylenate Steroid Profile                                               


Boldenone undecylenate is a testosterone-derivative used as an injectable anabolic steroid. Boldenone was originally developed to be used as a veterinary treatment for horses but is now used as a performance-enhancing drug by many athletes and bodybuilders. Bodybuilders usually use this strongly anabolic and moderately androgenic steroid for consistent muscle gain.


Boldenone has a chemical structure identical to testosterone. Although boldenone’s use is prohibited in sports, it has become an effective source of building lean muscle mass in athletes. However, athletes must know about boldenone’s safety issues and health concerns.


Properties of Boldenone Undecylenate:


This steroid is the synthetic derivative of testosterone, having many of its same properties. Both testosterone and boldenone share the same anabolic strength rating (100). Boldenone also exhibits aromatizable properties, meaning that it interacts with aromatase enzymes to be converted into estrogen. However, it has a lower affinity for aromatase enzymes because of its double-bond modifications between carbon 1 and 2 [1].


Benefits of Using Boldenone Undecylenate For Bodybuilders:


The Food and Drug Administration has not cleared boldenone undecylenate for human use, but still, it has benefits for bodybuilders. If you planing to buy steroids UK especially boldening then some of the benefits include:


  • Enhanced protein synthesis
  • Increased red blood cell (RBC) count
  • Retention of nitrogen in muscles
  • Improved strength
  • Lean muscle mass
  • Increased appetite
  • Increased endurance [2]


Effective Dosages of Boldenone Undecylenate:


Athletes use boldenone undecylenate injection at least once a week for performance and physique enhancing purposes. 200-400 milligrams of boldenone undecylenate per week is a safe dose for men however it is commonly know that doses of 400+ (preferably 600+) up to even 1g of it are being used by bodybuilders. The injection can also be reduced in volume to be administered in 2-3 doses.


Boldenone undecylenate results in a steady and quality gain in muscle mass and strength. You’ll start noticing the positive effects of boldenone within eight weeks or more therefore cycle of boldenone last general between 14 to 16 weeks.


For women athletes, 50-75 milligrams of boldenone per week is the safe dose to enhance performance and increase muscle mass [3].


How Is Boldenone Supplied?


Boldenone undecylenate is used as an injectable steroid and often comes with 200mg/ml vial.




If you want to buy steroids uk and boldenone commonly know as EQ or equipoise,  please bear in mind that this product is being used for treating horses, boldenone undecylenate is readily available as a veterinary drug. The drug is produced at a dosage of 25 mg/mL and 50 mg/mL in the Americas. Higher concentrations of 200 mg/mL of boldenone are of underground origin [4].


Side Effects of Boldenone Undecylenate:


Like other steroids, boldenone also comes with many side effects.


 1. Androgenic Side Effects: Higher doses of boldenone have androgenic side effects, which include facial/body hair growth, acne breakouts, and oily skin. Male pattern baldness is also provoked with this anabolic-androgenic steroid. Women should also be aware of the virilizing effects of boldenone undecylenate, such as clitoral enlargement, changes in skin texture, facial hair growth, menstrual irregularities, and deepening of the voice [5].


 2. Testosterone Suppression: When taken in higher doses, boldenone suppresses the production of testosterone production. If you cease the use of drugs, your testosterone levels will be normal again within one to three months.


 3. Estrogenic Side Effects: Boldenone is not entirely converted into estradiol s (estrogen) because of its structure. Aromatization studies show that boldenone converts into estrogen is half of the testosterone conversion. The side effects of elevated estrogen levels include gynecomastia, body fat gain, and increased water retention. Estrogen levels elevate when you take the dose above 200-400 milligrams per week.


 4. Cardiovascular Side Effects: One of the deleterious effects of boldenone undecylenate is on serum cholesterol. It means that boldenone can decrease HDL (good) cholesterol and increase LDL (bad) cholesterol, increasing the risk of atherosclerosis. The effect of boldenone on cholesterol levels depends on the type of steroid (aromatizable or non-aromatizable), route of administration, and the dose [6].


If all the above are fully understood and you are planning to buy steroids UK especially Boldenone then you are in the right spot.Please do consider all pros and cons and make the decision based on needs, goals and experience.


  1. Post LO, Bataller N, Parkhie M, Keller WC. Regulatory Toxicology. Clin Vet Toxicol 2004:28–45. https://doi.org/10.1016/B0-32-301125-X/50008-X.
  2. Boldenone undecylenate 250 mg – cost for sale steroids | Steroid shop n.d. Retrieved from: https://www.musclesevolution.com/boldenone-undecylenate-250-mg-uses-in-bodybuilding/
  3. Boldenone undecylenate: Uses, Interactions, Mechanism of Action | DrugBank Online n.d. Retrieved from: https://go.drugbank.com/drugs/DB14639
  4. Schänzer W, Donike M. Metabolism of boldenone in man: Gas chromatographic/mass spectrometric identification of urinary excreted metabolites and determination of excretion rates. Biol Mass Spectrom 1992;21:3–16. https://doi.org/10.1002/bms.1200210104.
  5. Oda SS, El-Ashmawy IM. Adverse effects of the anabolic steroid, boldenone undecylenate, on reproductive functions of male rabbits. Int J Exp Pathol 2012;93:172–8. https://doi.org/10.1111/j.1365-2613.2012.00814.x.
  6. Maravelias C, Dona A, Stefanidou M, Spiliopoulou C. Adverse effects of anabolic steroids in athletes: A constant threat. Toxicol Lett 2005;158:167–75. https://doi.org/10.1016/j.toxlet.2005.06.005.


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