Well, I have been using glandulars so far so good. Since I have been on the glandulars never felt better. This overwhelming feeling that I use to have when doing something over the top is gone. My goiter was getting bigger that stopped , dryness of the skin gone, my hair is growing stronger and my mood is so much better. I am happy I switch to glandulars because kelp nor Siberian ginseng were not doing anything for me. Amen!!!