I have been taking EPST:Plus by DesBio every day since September 2024. It was recommended to me by my nutritionist to help regulate the Epstein Barr virus in my system which has attacked and caused my thyroid not to perform up to par. I had previously taken EPST:SSR (formerly Epstein Barr Virus Series Therapy) protocol noticing little change in my thyroid function. After taking EPST:Plus drops for about six months I noticed my thyroid was functioning in the normal range. If anyone has similar circumstances, I recommend trying this product to help control their Epstein Barr virus. I still have the virus in my system, but at least it is no longer attacking my thyroid. I was not aware that the formula had been changed, but so far so good.