Yes there is... Years ago, I did it with Low dose Test e (250mg) and micro dosed Tren e (50mg) for 14 weeks. Originally the purpose was just to keep me mentally in check of my diet. I liked it but it does depend on individuals and how their body reacts on low dosages (its a bit of experimenting). I also found that a benefit of microdosing Tren E was the reduction of the side effects.