I tried this in the concealers and styling product forum, but assume more people in here would know if these kind of products do more harm to hair loss and diffusers...
https://www.hairlosstalk.com/interact/threads/control-gx-grey-shampoo-just-for-men-brand.105365/
https://www.hairlosstalk.com/interact/threads/control-gx-grey-shampoo-just-for-men-brand.105365/