Hydration for skin (not water) - Blue Malva?

I saw a singular video that has served as a jumping off point for my research. Video linked below. The creator talked about how water is not true hydration, especially when in reference to our skin and its needs. She introduced the importance of teas like the Blue Malva Flower. There’s a few other articles but I’m Curious if you all have read or come across similar research?

https://www.tiktok.com/@botanicalatelier/video/7609198068625460511