I have very dry hair and scalp. It's impossible to brush.

I have been using joico moisture recovery moisturizing shampoo as well as joico moisture recovery treatment balm. Expensive as hell, but it has helped make my hair a bit less dry and scruffy. The results are as you can see on the pics.

I have tried just about every washing frequency you can guess. Every day, every 2 days, twice a week, once a week, never shampoo and wash with just water.

Currently I am using the shampoo 1 to 2 times a week, and the treatment balm 2 to 3 times a week.