@ahmo knows glandulars. I think everyone's experience is different. I'm toying with hypothalamus. I feel great but around 4 pm I got a headache, hot flashes and sweat pouring off my face.
I used thymus glandular for a time, an attempt to balance Th1/Th2. I'm not certain if it helped. I had excellent results using hypothalamus, adrenal, and pituitary glandulars. Adrenal worked when the licorice and cortef I'd used no longer helped.
You might find more info at selfhacked.com. He has a section on Th1/Th2.