IGF-1 is a peptide hormone that mainly determines the work of somatotropin, but if growth hormone provokes the synthesis of endogenous insulin-like growth factor, then in this case we are talking about its exogenous counterpart. It goes without saying that the properties of endogenous IGF-1 differ from exogenous, especially if the peptide chain has been changed to prolong the action of the drug. The situation is aggravated by the fact that there are a huge number of fakes on the market, since there are very few original drugs, few people produce them, and research institutes are forced to order insulin-like growth factor in the USA, so the choice of a manufacturer should be treated with particular trepidation. And, nevertheless, IGF-1 works, but this drug is not for everyone, a drug that needs to be able to buy, be able to use and be able to store.
Insulin-like growth factor provides hyperplasia of muscle fibers, of course, if all the necessary conditions are met, and, first of all, when used in conjunction with AAS. Generally speaking, IGF-1 can be given for different purposes and with different drugs, but in the same dosages and only when using high-volume training. The fact is that less than 100 mcg per day does not give an effect, but the insulin-like growth factor is in a bound state, and about 75% of the IGF in the blood is bound by BSIFR-3, which is destroyed by the accumulation of lactate, which occurs during pumping. The duration of the course of IGF-1 in some cases reaches 4 weeks, if the drug is put together with growth hormone and insulin, which can cause diabetes, so the most optimal course time is 2 weeks.

The course of insulin-like growth factor is best used after the withdrawal of long esters of testosterone, without or in conjunction with short preparations, so that with the complete abolition of doping, PCT can be started immediately. The fact is that IGF-1 promotes fat burning, so for the last 2 weeks of the course, you partially neutralize the side effects of long esters by removing water from the body, and on the other hand, maximize the effect of AAS, achieving a monstrous pumping. It should be noted that IGF-1 removes not only water, but also glycogen from the body, so special attention should be paid to carbohydrates. For the same reason, it is recommended to use creatine during the cycle, which contribute to muscle performance. Clenbuterol can be used as an anti-catabolic, as well as a synergist in the process of fat burning.
IGF-1 injections are done 2-3 times a week, sometimes 4 injections are given, of course, on training days, due to the short half-life. Insulin-like growth factor, even of prolonged action, lives no more than 12 hours, and ordinary IGF-1 lives for 20-30 minutes. Injections are made either into the fat fold on the abdomen, or into those muscle groups that you are going to train. The dosage is 100 mcg, it makes no sense to put less, it is problematic to put more, because there is just 100 mcg in the ampoule, and the diluted drug does not live for more than a day. Putting more than 150mkg is pointless and dangerous. Injections are made before training, if the insulin-like factor is not prolonged, if it is prolonged, then a couple of hours before it.

Courses of IGF-1 longer than 2 weeks without the use of somatotropin are not only dangerous, but also meaningless, since injections of insulin-like growth factor cause tolerance of hormone receptors. On the other hand, this peptide stimulates the sensitivity of luteinizing and chorionic hormone receptors, which once again confirms the effectiveness of using IGF-1 at the end of the AAS course. The peptide should be stored at a temperature from -20°C to +37°C, and in a dissolved form up to +8°C, and, in a dissolved form, it does not break down only during the day. As for the IGF-1 powder, it remains stable for as long as 3 years, but if you come across a drug older than this age, then you should not take it.
If we talk about the situation with the insulin-like growth factor on the market, then it leaves much to be desired. Chinese-made igtropin is absolutely all a fake, since GenSci no longer produces IGF-1, respectively, the products of this company cannot be on the market a priori. Dinalan is gaining popularity, which so far remains the only original drug on the Russian market, but it is very easy to stumble upon its fakes. It is with a huge number of fakes that most of the negative reviews about the drug are associated, however, this does not exclude the fact that the drug was simply incorrectly used, or it does not work on an athlete, which also happens. For example, the same methane does not work for everyone, although, really, something, but methane tested by time and experience of more than one generation of weightlifters, powerlifters and bodybuilders.

So, summing up, we can say that the insulin-like growth factor should be used immediately after the abolition of long testosterone esters, together with short esters or solo. Injections of the drug are made 2-4 times a week, 100 mcg for 2 weeks, after which the drug is canceled for 2-3 weeks, while PCT is performed at this time. During the course of IGF-1, it is necessary to intensively consume carbohydrates, take creatine, and you can also add clenbuterol to the course. The training style is pumping, which allows you to maximize the potential of the drug. The drug should be stored at a temperature of -20°C to +37°C, and it should be bought only in trusted places, which is associated with a very high risk of acquiring a fake. The drug has practically no side effects, but it stimulates the hyperplasia of organic tissues, which include tumors, so it can provoke cancer.