Does anyone have a recommendation for a good thickening shampoo that is not too heavy. Some of them weigh your hair down. I am ...erm..oldish, thyroidless, have dry, coloured hair (due to greys) and it's thinning on top. Sound great don't I !! I have been using Plantur 39 (the green one) and it does give volume but my hair is so dry. I don't mind high street or high end.