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Boldi 300

The popular testosterone Boldenone Undecylenate is also known by the name of Equipoise, which is an anabolic androgen steroid. The product has been around since the 1940’s and continues to be very popular today. It was once only used by veterinarians but in the 1950’s it was introduced by Ciba as a human grade. The name of the product at that time was Parembole. It was used in medicine realms until the 1970’s. Today, it is once again only offered through veterinarians and various underground secret markets.

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Over the years, a great deal of testing has been conducted with Boldenone Undecylenate. While it is often stated to be quite similar to Deca Durabolin, also known as Nandrolone Decanoate, that isn’t true. The two are very different from each other but that false information continues to circulate today. Boldenone Undecylenate is quite unique from other forms of testosterone out there. It doesn’t have any progestin characteristics.


Boldenone Undecylenate is an altered form of testosterone, not a natural one. There is an additional double bond and that reduces the adrogenicity and the estrogenic effects. The Undecylenate ester is what it bonds to, and that controls how the hormone is released once it is in the body. The peak for the release is about 3 or 4 days after Boldenone Undecylenate has been injected. For the next 3 weeks, the body will continually release a small amount of the hormone into the body from that single injection.

As a result, Boldenone Undecylenate will aromatize at about ½ the rate of testosterone. While estrogenic side effects can happen with the use of it, they aren’t very common compared to when a person uses testosterone. While it isn’t as powerful in terms of building muscle mass as testosterone is, the fact that there is less of a chance of estrogenic effects allows a person to benefit from gains that are clean when they supplement with Boldenone Undecylenate. It also doesn’t pose any risk to the liver.


There are quite a few similarities with the properties of testosterone and Boldenone Undecylenate when you compare them for muscle mass enhancement. Both have the ability to:

  • Enhance the protein synthesis
  • Increase IGF-1 output
  • Reduce the amount of glucocorticoid hormones
  • Retain nitrogen

In addition, Boldenone Undecylenate is able to increase the count of red blood cells in the body. Almost all anabolic steroids have this characteristic. However, it is important to understand there are concerns about just how much this supplement can increase those red blood cells. The problems tend to only be identified when Boldenone Undecylenate is taken in very large doses for excessive periods of time. While the increase of red blood cells happens fast and it can be a huge benefit, you want to avoid creating a situation with your body where those levels are too high for the best functionality. For most athletes, being able to raise red blood cells at a moderate level does have benefits.

Effects & Side Effect

Understanding how Boldenone Undecylenate effects the body is important. For the most part, users are able to tolerate this anabolic steroid with ease. Most users find their gains in muscle mass are clean and occur quickly. Their performance is enhanced and it can help to reduce problems with heath issues too. This includes osteoporosis and muscle wasting related diseases. As mentioned, Boldenone Undecylenate is authorized for veterinary use. It is mainly used for horses in an effort to give them leaner muscle mass and sometimes to increase their appetites.

For humans, many athletes also report an increase in appetite when they use Boldenone Undecylenate. It is important to consume enough calories daily with plenty of protein being part of the overall diet plan. Keep in mind, not everyone who uses this supplement has the same experience with their appetite. For those who often can’t get in enough calories as they need though, it can give them the boost they need.

Boldenone Undecylenate is often used as a bulking steroid by athletes in their off season period. This allows them to see lean muscle mass gains, but it is going to take some time. It isn’t going to be as fast as what they would gain with the use of anabolic steroids such as Deca Durabolin or Anadrol. Yet the fact that those steroids often come with water retention and Boldenone Undecylenate doesn’t means it is a great choice for athletes that want to see overall results.

There are also athletes who add Boldenone Undecylenate to a stack of other steroids when they are in an off season. They use it this way rather than as a base type of steroid. This is a good choice to help stimulate the appetite when some of the items in the stack may be suppressing it. This can be the slower but steadier way to gain the additional muscle mass they want to be ready for the new season. An athlete isn’t always out there looking for huge gains.


Often, the benefits an athlete is looking for has to do with increasing overall strength. Boldenone Undecylenate can help with this as a means of helping the athlete to enhance their overall performance and abilities. Keep in mind, it can be detected in the body for a very long time so you have to time using it just right. It can show up on a drug test up to 5 months after the last injection.

Being able to have more muscle mass, more strength, and to increase endurance are all desired results athletes seek. The recovery time is also reduced when Boldenone Undecylenate is used. This helps a person feel better after a challenging workout and reduces the risk of injuries or sore muscles.


Another popular use for Boldenone Undecylenate is a cutting steroid. This is one of the most popular uses for it. This supplement allows the lean muscle mass to be well protected during the cutting cycle. Losing body fat requires burning more calories than you take in. A deficit of calories is necessary for anyone wishing to do so, regardless of if they choose to use anabolic steroids or not.

The problem though is a deficit of calories can be a risk to losing the lean muscle mass you have worked to create. The body tends to try to take what it isn’t getting from calories from the muscle tissue. Eating right is a key part of helping to secure that lean muscle mass, but that often isn’t enough on its own. If an athlete doesn’t use an anabolic steroid, they will lose some of that lean muscle mass. The use of Boldenone Undecylenate can help to prevent that from occurring, and help to maintain the physical characteristics you want to see on yourself.

Combining Boldenone Undecylenate with Trenbolone or Masteron during a cutting cycle is recommended. They are non-aromatizing steroids. Most of the time, Boldenone Undecylenate is used early on in a cutting cycle and not for the full duration of it. The reason it isn’t used towards the end is to further reduce the risk of estrogenic side effects. While they shouldn’t be substantial, the goal is to cut out estrogenic elements completely if possible.

Possible Side Effects

There are possible side effects to be fully aware of with the use of Boldenone Undecylenate. While most men seem to tolerate this anabolic steroid very well, there can be concerns. Would also use Boldenone Undecylenate but a very low dose should only be used. For both genders, the higher the dose and the longer the cycle, the more the risk of side effects. Here are the various categories of possible side effects to understand:


Boldenone Undecylenate can create some side effects which are classified as androgenic. This can result in various side effects such as:

  • Male pattern baldness
  • Unwanted body hair

The structure of Boldenone Undecylenate though reduces the risks of androgenic side effects dramatically. Typically, an athlete experiencing such side effects will also have some underlying genetic elements that make them at an increased risk for such issues and concerns.

For women, the possible androgenic side effects from Boldenone Undecylenate fall under the category of virilization. This includes:

  • Deeping of the voice
  • Enlarged clitoris
  • Unwanted body hair

Women who do experience such side effects with the use of Boldenone Undecylenate should stop using the supplement immediately. This should result in the side effects disappearing over time. However, if the woman continues to use the supplement and ignores those side effects, they may become permanent.

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