I suspected I needed adrenal support. I had various symptoms very similar to those associated with thyroid problems, plus my pee was very dark even though I was well hydrated. Took 2 capsules in the morning over a month I finished the tub. Within days my pee went to a normal colour, eyebrows and hair started to thicken, heart beat became regular, anxiety diminished, skin soft and moist and white grey hair has started to grow with colour again. I thought that once you went grey/white that was it was 'no going back' but it is re-colouring. Not even a gradual thing, literally, Black & White and this was a very unexpected turn up. Same with my eyebrows they had thinned and what was left was white, they have thickened up and colour is showing through. I have been off the formula for about a week now and my pee is getting dark again - ordered two tubs now.