If ur looking for pure Strength gains winny might not be the best choice... Personel experience for me that have really got my strength up was tren... Ofcourse test, deca, dbol etc etc but tren was pretty nice... Ive wanted to try holistien but just decided against it ive only read that it cant be beat as far a strength but never met anyone who actually used it, not a popular one for body builders and spose to really tax the liver