I have been more than happy with both the products and helpful advice offered by ProColloidalSilver. The colloidal silver alone has cured me of a fungal spore poisoning after trying to move to an environmentally sick 18th century cottage, a peptic ulcer and countless food poisoning events. I very much regret not trying it for my lung condition, but was too late and lost the upper left lobe of my lung, which has left me permanently short of energy. I shall forever be grateful to Alan - and Co - from the bottom of my heart. You have a wonderful company! Thank you again for your wonderful service and products.