B5 will be listed as pantothenic acid. It is never advisable to take one B vitamin by itself. They should be taken together in the normal complex. This is because they/you will become imbalanced. Best natural source for b5 is bee pollen.
Take the green tea separate from any herb, including saw palmetto and ginkgo. About an hour will do. The tannin will make most herbs impotent.
The choline B is good for the brain. I'm not familiar with its function for skin or hair.
Try to get saw palmetto that includes beta sitosterol. It is a plant sterol and will help with the saw palmetto.
Do not take DHEA. I don't see it in your list, so just a warning. It has a tendency to make you lose hair.
I can't tell if you are a guy, so I'll just say that you should make sure your multi does not contain iron. Men can't dispose of iron as easily as women. Of course you can donate blood periodically. Or take a good chelator, like IP6.
My favorite multi it is
https://www.iherb.com/Now-Foods-Adam-...blets/380?at=0 It has everything you really need, including the B5 and saw palmetto and ginkgo nd choline B.