I've been using Dragon Pharma test 250 for 6 months now and noticed an increased in strength and size 3 weeks into the cycle. I've used Kapla test and it worked fine. I just feel that dragon pharma works better for me. But that's just preference. I used it as part of my trt because those online trt subscriptions are way too expensive. I also have adhd and it has been helping me with mental clarity. The muscle gains and strength are the added bonus for me. I went from 180lbs to 205lbs and been maintaining that weight for a while now. I recommend trying dragon pharma for trt or in your next bulking cycle.