There is a "switch-over" period where your scalp is going to look disgusting, because it's so used to compensating for the oils that get stripped out by the shampoo, even the gentle stuffs. Give it about 2 weeks, keep your hair up or under a bandana or something, in braids and wash about every 4 days with the baking soda/vinegar. By the end of that, the roughest part will be over and you can figure out how often you need to clean your hair from there.