I used this product for years every night and absolutely loved it. However this winter, it has burned my skin multiple times. I stopped the use of other products assuming it the redness and burning of my skin was due to something else, but as I took out the other variables it was clear this product was the cause. I even took it back to the store assuming that it was a bad formula but the next product burned my face again. I even used the buffer cream which I haven't in years. Has the formula changed or has this product just gone bad? This is highly disappointing as my skin has never looked worse in all my life after using this.