IGF-1 Long R3

This Post is also available in: German

IGF-1 is a peptide hormone that belongs to the same hormone group as insulin.
It is usually in the form of a freeze-dried white powder, which requires cooling and is sensitive to light.
IGF-1 favors the growth of skeletal muscle and organs. IGF-1 has been known since the end of the 50 years, but the entire spectrum of effects became known only decades later.

IGF-1 Long R3 is a further development of IGF-1 and a much more effective. In bodybuilding, it is used for building, as it increases the strength and reduces the body fat. The number of red blood cells is increased similarly to the application of EPO, but not so much.

The side effects are considerable. For example, you can see a lot of bodybuilders who are very well defined, but have a big belly. This is due to the growth of the internal organs.

Side effects:

Headache, nausea, hypoglycemia, excessive growth of existing tumors, excessive growth of the internal organs

IGF-1 is used in bodybuilding only by the athletes, who do not care about the folic damage and who would do anything for a kilogram more muscle mass. The athletes, who are concerned about their health, do not use IGF-1 and should not think about it.

Application / dosage:

Solid studies with athletes are not known, which is why the right dosage is more or less a puzzle. Athletes who have already used IGF-1 Long R3 are largely of the opinion that dosages below 20mcg per day do not produce any results. IGF-1 Long R3 is intended to develop its optimal utility at 100-140mcg per day.

An IGF-3 Long R3 cure usually extends over a period of 4-6 weeks, with the daily dose being distributed to 2 injections after the sport. After a cure, a break should be taken for at least the same period of time as otherwise there is an increased risk of antibody formation and the body would get used to IGF-1 Long R3.

The dosage information given here is not intended as a dosage recommendation or medical advice. These are statements by bodybuilders who have used or used these active ingredients. The dosages should never be regarded as generally valid. If you are using the idea of using steroids or similar, ask a doctor or pharmacist.

Black market price / availability:

A kit with 1mg of IGF-1 Long R3 (= 10 x 100mcg) is traded on the black market between 500.00 – 1000.00.
IGF-1 Long R3 is moderately available on the Schwarzmarkt.


[In Progress]


IGF-1, IGF-1 LR3, Insulin Growth-like Factor, Insulin Growth Factor-1, Insulin Growth Factor-1, Insulin-like Growth Factors, Insulin-like Growth Factor, Somatomedin C

Trade name / manufacturer:

Igtropin / GenSci, China
Long R3 IGF 1 / SAFC Biosciences
Long R3 IGF 1 / GroPep

Chemical / biological information: