the only thing that works is finding out if you have nutriotional deficencies. minerals, vitamins. protein fat, and fiber. all of this is important. in my case, i had diabetis. so i ate keto. i developed copper deficencie, which led to vitamin c deficencie. very hard to find out. many vitamins and minerals battle each other. what nobody totld me: you dont need fiber to have good poop. you need it for the short fatty chain acids that turns into fuel for cells, or does catalyst stuff that needs be doing to absorb all kinds of things.

fat is essential for hair, likewise proteins. proteins and fat are the building blocks, minerals and vitamins are the cement. nothing will work without the other.

oh yeah you need the sun. if yu have copper deficency, you cant take in iron. and there is many more things like that.

so go to a lab and mak a mineral and vitamin profile.