"Hurts So Good" hot sauces have gone through little change since their inception. They have simply always been that good. We have done a little tweaking to improve the depth of flavors, but they are as good or better today than ever. They are 100% all natural with no modified food substances of any kind. It is GMO free, MSG free, Gluten Free, and Xanthan Gum free.We are confident that this and all our sauces will quickly move to the top shelf of your hot sauce supply.