Until your reach the age of 45 it should be cycled. As with any hormone your body will quite producing if it's supplied externally. However, around the age of 45 your body’s production of DHEA has already dropped off significantly, in most individuals, and you need to add it to your diet for optimum health. It’s best to have your hormone levels tested to see if supplemental DHEA is required. I also like to take DIM alongside of DHEA to prevent shunting of DHEA to estrogen.