is soya milk healthier than regular cow's milk?

I have switch to use soya milk than cow's milk because I have read an article that states that soya milk can be good to those who are having acne because of it's natural estrogen content.So I just use it instead of taking anti-androgen pills which really makes me dizzy.However,I'm really concern if soya milk can supply us with the calcium we need because it's derive from plant and I think it's not really helping me to sleep.

hi there! ;0 i really dont know what is the truth but i think i prefer to drink cow's milk than soya milk. :) maybe because i have gotten used to it when i was still a kid. but as for their health benefits, im not really sure. :)