It is nearly impossible these days to make a product that 100% of the people can use 100% of the time. There are so many variations in allergies and sensitivities that exist. All of our products list all of the ingredients in their product descriptions. Should you be interested in a product that has an ingredient that you are sensitive to, or allergic to, please feel free to contact us. In many cases we can substitute an ingredient for you depending on which product and which ingredient. Teas that come to us pre-blended (not blended in-house) cannot be changed. Please be advised, however, that there may be a minimum purchase for custom formulations.