I might suggest a little more information. You've chosen to post to "Abused Husbands" and the only information that you've supplied is "brain fog" and a couple of remedies. What else is going on? What are your other symptoms? What is the state of your emotional health? Etc.
It's impossible to render even a cursory opinion without information that may correlate. Emotional and physical health work in tandem. One can ingest and apply every herbal and alternative remedy that mankind can concoct. But, if that person has deep and infected emotional scars, no amount of supplements, ointments, or trace elements is going to "fix" or "cure" what ails that person, overall.
"Health" is a whole-Self discussion.
I agree with Bob about doing a parasite removal. Kroeger makes a good one with wormwood, green/black walnut, clove hulls, malefern. I think Now makes a good one too.
I also have debilitating brain fog and have tried many supplements that help - a little. I am in the process of doing a parasite cleanse but I waneted to go further so I hired a brain fog specialist online who I just met with last week. He put me on the following (but you may need something different):
When i read the reviews on these supplements, i was amazed at the results people were having with brain fog. I have not received mine in the mail yet.
I struggle against it so badly, it scares me to think of what my future holds. Work is nearly impossible. I am now very hopeful. I hope it was not irresponsible to tell you about something I have not yet tried. I just did not want to lose site of your post and empathize with you so much.
(google brain fog hack)