PERRRRRRRYYYYYYYYYYYYYY!!!!! I was thinking it might be the trihydroxystearin as it’s a new ingredient I’m working with. The SMT is supposed to be somewhat gentle. I tried researching the trihydroxystearin but there isn’t anything out there about it’s effects on mucous membranes. Thanks for the reply. So good to hear from you. Still waiting for you to start a podcast for us formulators!!!