Question about kefir

I am thinking about stopping all dairy in my diet however i also wanted to start taking kefir with raw cows milk or goats milk which ever is more convenient to find. I want the good bacteria because i have Acne and constipation. I was wondering if just the water kefir would be as benificial because i read somewhere that you can't get as many strains this way. Thanks for your help.

Erin Tweet