I've been purchasing this for myself and my daughter for approx 2 years now. We take it continuously as per daily dose information. I started noticing benefits within the first month of taking, symyoms reduced further with continuous ongoing supplementation. It's evidently helped thyroid issues And fibrocystic tissue - something that the health professionals never advised upon but there are proven research studies evidencing iodine helps and definately has for us. Fibrocystic tissue reduced 100% since taking this after seeing a researched health documentary of its benefits. Also, Thyroid issues hugely reduced. I love that it's a natural organic iodine. Thank you Finchley clinic for Detoxadine availability here. I buy in bulk for the much needed discount to reduce costs. I'd like to add, as a health professional myself, I researched and found iodine can also help in reducing and preventing plaque formation in the brain, with potential to prevent or reduce alzheimers and demebtia. I'm adding this to my review as I care about people's health but everyone could research for their selves of potential benefits before deciding whether to try or not.