Questions: Fashion & Beauty

I'm wearing foundation in both pics but both are two different foundations/ brands.

Has anyone tried no shampoo for a long while and just use water to rinse out dirt and debris from hair? I heard shampoos hav awful ingredients much like the majority of food in America. Shampoo makes our hair more greasy then Usual and strips away even some of our natural oils. Well, ik there are bad shampoos and good ones, but I am curious if no shampoo really makes a difference. Plus id be saving a lot of money.

For a month I tried washing my hair once a week and i felt greasy over the 3 day mark. So I am now currently trying no shampoo until i feel like a slimy mushroom. Im on day 5 without shampoo lol i feel clean still as if I used shampoo.