I don't personally but i use the clairol herbal essences "build up remover" shampoo which helps cleanse the hair of the other crap i use like serum and styling stuff. Might be worth a go...
also put the shampoo on dry hair - then lather, then add water, lather again then rinse and wash as normal. use an anti build up shampoo or fairy liquid if it's really really bad!