is a trademark of somatropin – recombinant human growth hormone, bioidentical to the human body’s naturally produced growth hormone. It is manufactured by BIOFARMA UA and comes in 4 IU / 1.3 mg vials of lyophilized (freeze-dried) powder and 1vial sterile water for injection. There is 1vial per box. Rastan is to be reconstituted with plain sterile water for injection. Each HGH vial is mixed with sterile water and injected either intramuscular (into the muscle) or subcutaneous (under the skin). The dosage depends on the purpose of the therapy. The most common use is 2IU per day for anti-aging purposes or 4IU per day for bodybuilding, shaping and body fat reduction. 8 to 16 IU per day is considered an extreme dose and is used as a treatment for severe burns and to speed up recovery after injuries or surgery. Please consult your doctor to determine a proper dosage for you.