Growth hormone jintropin is a drug created using recombinant DNA technology from a metabolic process found in Escherichia coli bacteria. It has the same amino acid sequence as natural human growth hormone.

Growth hormone is important in the body’s vital functions. It is released by the pituitary gland, stimulates the growth of muscles and bones, helps regulate metabolism and affects sexual pleasure. The production of growth hormone slows down with age, so many genetic engineers are struggling to create natural hormone enhancers. Thus, the Chinese pharmaceutical company GeneScience Pharmaceuticals Co., LTD started production of purified biosynthetic human growth hormone called jintropin.

As a market leader, Jintropin is a brand of synthetic growth hormone (somatropin). It consists of 191 amino acids. Hormone based on protein, it is an almost exact copy of a substance that is produced by the pituitary gland in the head. Being a highly purified product, jintropin is among the best growth hormones you can find on the market.

Like other somatropin brands, Jintropin is injected. Usually, it is obtained in the form of a lyophilized powder, which must be diluted. The dose for the cycle will depend on the purpose for which you use synthetic growth hormone.

From the history of jintropin

In the 80-ies of the last century, the athletes only dreamed about the appearance of a synthetic hormone that would activate muscle growth, would give strength and increase endurance. On “the black market” you could find so-called “corpse gene.” It was the pituitary gland gene of deceased donors. Sounds creepy, doesn’t it? But progress in genetic engineering does not stand still, so in the late 90s, the Chinese scientist Dr. Lei Jin was developed biosynthetic growth hormone Jintropin.

Production of this drug has always been actively supported by the Chinese government. This is evident from the ownership of shares of the pharmacological company GenSci, because half of them belongs to the state, and the other half – Professor Lei Jin. Today, GenSci company is the largest producer of biosynthetic hormone in Asia and has a production workshop with an area of several thousand square meters.

Until 2005, jintropin was produced in the form of powder, which must be diluted to inject. But in the end, a new form of the drug was produced in the finished liquid form, which greatly facilitated the use for the consumer.

Series of events in 2007 led to the fact that the production of Jintropin was temporarily suspended. The attention of the press was focused on its manufacturer after an outstanding actor Sylvester Stallone was caught smuggling the drug to the customs. The U.S. government has charged GeneScience and its CEO in the smuggling of biosynthetic hormone.

These events influenced the Chinese government’s decision to temporarily revoke the company’s license. Lei Jin and GeneScience was charged in September 2007 with the United States. The company has suffered from charges for smuggling, for alleged illegal import of the hormone under the brand name “Jintropin” in the country.

It should be noted that earlier the Chinese pharmaceutical company stated on its website that its growth hormone product is not intended for sale outside the home country. To date, Jintropin is banned in the United States. However, the clandestine sale of the drug thrives and poses a risk. Since jintropin is an extremely powerful product, it has numerous falsified versions. It is believed that even most of the somatropin units available on the market today are fakes.

Jintropin in bodybuilding

Training is very important for bodybuilding. You can hardly expect to build the muscles you dream of without exercise. But sometimes, it can be hard for you to step over to the next stage or overcome fatigue to practice further. This is especially true for professional athletes.

It is believed that biosynthetic growth hormone is able to increase your ability to exercise. It shortens the recovery time between workouts and speeds up healing of damaged tissues. This is real good news for bodybuilders and athletes.

In the previous sections, we learned what jintropin is. It strengthens the ligaments and joints, increasing overall athletic performance. It can be used to burn excess fat from the body, including the abdomen. It is believed that synthetic hormone is useful to improve bone density and strengthen the immune system.

There are also those who are interested in other benefits than bodybuilding. Jintropin can supposedly help cope with signs of aging such as wrinkles. However, there is little scientific evidence to support the use of Jintropin for recreational purposes, but many people still use it regardless.

Avoid counterfeits

To avoid illegal copies, you need to know the facts about Jintropin:

  • The drug comes in pharmacies by British distributor “Europharm”. In pharmacies, it is stored in refrigerators, and comes with cold items directly from China. So, you can be sure about the observance of thermal regime for the drug and not changing its molecular composition.
  • 1 pack has five bottles of freeze-dried powder of somatropin. Also included five ampoules of water for dilution (1 ml). For injection, it is provided the same amount of insulin syringes. There are packs containing 10, 20 bottles with a corresponding set of related units. Do not forget about the instructions with the registration number from Ministry of Health.
  • The package must be label without holography. When opened, the sticker comes off.
  • The sticker has a special code, the authenticity of which is checked on the website of the manufacturer.

Jintropin and its consequences

The use of synthetic growth hormone, especially when it is not properly controlled, can cause side effects. The fact that jintropin can be sold on the black market increases the risk of side effects. Negative consequences that may result from improper use of growth hormone or the use of counterfeits include:

  • Swelling in hands and feet (as a result of fluid retention)
  • Excessive or abnormal growth
  • Carpal tunnel syndrome
  • “Children’s” sleep in the afternoon
  • Joint pain
  • Extension of mammary glands in men
  • Tumor growth
  • Diabetes
  • High blood pressure

If you are a healthy person using jintropin, you run the risk of blocking the pituitary gland so that your body relies entirely on synthetic hormone.

From the foregoing, it can be concluded that jintropin is a supplement containing human growth hormone that many athletes take in the hope of improving strength, agility and physical endurance.

Other people, who takes jintropin, believing that it can reverse time and prevent the aging process. However, with clinical results and many potential side effects, supplements such as Jintropin are generally recommended only for special medical cases. Use caution if you do decide to take this drug.

The website of iron-set.com provides information only for informational purposes. "IronSet" does not sell and does not call for use of potent substances, including anabolic steroids. This information is collected from public sources and can not serve as a basis for deciding on the use of certain drugs. The information presented on the website does not call for the use or distribution of potent substances.


Andrey is a coach, sports writer and editor. He is mainly involved in weightlifting. He also edits and writes articles for the IronSet blog where he shares his experiences. Andrey knows everything from warm-up to hard workout.

Leave a Reply