I've been working out pretty hard lately for the last 5 months and progressing quite nicely with just powdered protein supplements. My dad bought me some supplements called Deca-50, Winstrall-V, and D-Bolon. I did a bit of research on them and alls they say is that they are for growth of muscle tissue. It's made by german american technologies. Should i take this stuff or give it a try at least?