Why in the world do you want to use Syntherol now??
Syntherol is for ADVANCED trainers, when steroids are not working enough anymore!
You shouldn't be on steroids in the first place!
You shouldn't be touching steroids until you have at least 2 years of goodt training and nutrition done, THEN you do steroids and then many years later, when you are not getting the results you want, you use Syntherol!
Look, for 18 you look good. In 2 years you will look great, but right now it's not the time for Syntherol, or even for steroids!