The 20iu is much stronger !
There are many benefits to Human Growth Hormone therapy, here are a few of the documented ones:

* Higher Energy Levels
* Lower Cholesterol and Blood Pressure
* Stronger Bones
* Reduced Body Fat and Increased Muscle Mass
* Regrowth of Hair
* Sharper Vision
* Increase Immune System Function
* Improved Sleep
* Increased Memory
* Enhanced Sexual Performance
* Faster Wound Healing

Note : our HGH does not included water . Please get it in your local pharmacy (water for injection)!