Human Chorionic Gonadrotropin Description by Bill Roberts - HCG is provided as a glycoprotein powder to be diluted with water, and acts in the body like LH, stimulating the testes to produce testosterone even when natural LH is not present or is deficient. Use of this drug in the taper is rather counterproductive, since the resulting increased testosterone production is itself inhibitory to the hypothalamus and pituitary, delaying recovery. Thus, if this drug is used, it is preferably used during the cycle itself. A daily amount of 500 IU is generally sufficient, and in my opinion usage should not exceed 1000 IU per day.
Daily administration is superior to less frequent administration.
A 29 gauge insulin needle is recommended. Injection speed should be slow. Some HCG products are diluted 5000 or even 10,000 IU per mL, while others are diluted 1000 IU per mL. So far as I know there is no need to make the preparation so dilute. Once mixed, the preparation should be refrigerated and used within a few weeks. The substance is also somewhat temperature sensitive before mixing and should not be exposed to excessive heat.