It is not easy to find shampoo and product for super fine hair. 30 years ago, when this picture was taken by my dear friend Renato, I used Kiehl's products. Kiehl's opened their first store on 3rd Ave over 30 years ago. They since sold the company and you can find their products anywhere.
My favorite shampoo is:
Kiehl's Amino Acid Shampoo
Kiehl's Extra Strength Conditioning rinse is amazing as well! This is for dry or damaged hair...
I also love the Nurturing Body Washing Cream.
Try it, I think you will love their products.