A few people have asked about going sulphate and silicone free.
I will share what I did but suggest looking at Curly Girl Method approved products. I don't do the full method just use the products.
I started off using an SLS free shampoo by Happy Naturals which you can buy in Sainsbury's and silicone free conditioner from ultimate blends.
This improved my hair a bit but then I decided to try proper co-washing and that is so much better.
You need a scalp brush so you can give your head a good scrub without knackering your fingers. I got mine very cheaply on amazon.
Then I used As I Am co-wash to wash with and ultimate blends banana hair food to condition the ends (my hair is waist length if it is short you might want a lighter conditioner or none at all). This was brilliant, but As I Am isn't available in my local shops and isn't cheap so I decided to try something else that I had seen recommended.
I now wash with XHC conditioner which is available in B&M, savers or pound shops. I still use ultimate blends on the ends of my hair but I can just use the XHC if I want to.
You need to spend a good 2 minutes massaging your scalp with the brush to get your hair really clean. This can tangle it a bit so you may need to use a wide tooth comb to detangle while you condition.
Before you start doing this do a last wash with your SLS shampoo to get rid of any silicone build up then ditch any silicone containing products.