For the small amount necessary and the many uses it has, I don't think it's expensive at all. When you consider that I could have had eight birds die from fungal infections and now, they are all fit and breathing great, seems it did the trick for very little $$$. Couldn't have done that with bleach and antibiotics in the case of fungal infections are useless. So, I have no issue with the price whatsoever, even though we are on a VERY small fixed income.