The only "detoxing" you will have from switching diets is that caused by losing weight. Fat, along with storing energy and providing insulation, is used to also store toxins. When losing weight too fast (faster than the body can eliminate the toxins through the fecal/urinary filtrative pathways), toxins are released too fast. Acne from the vegan diet has nothing to do with the food itself or even the vegan diet, but from the weight loss that can come with switching to a new diet, especially one that has a lower avg caloric intake, such as the vegan diet. There are also different types of acne (bacterial, chemical, hormonal, etc), and hormonal acne can sometimes be triggered by the consumption of milk. In people whose immune system has hormonal acne responses, switching to a dairy free diet may help to clear up acne. I came here for porn, not to educate the masses, smh.