“I am on my second purchase of this product. I bought it for my perioral dermatitis (and I suspect I have rosacea too). Low dose doxycycline alone only partially relieved my perioral dermatitis rash and the addition of this product resolved it completely. I use it on combination with a La Mer moisurizer, Cicapair tiger grass camo drops and then foundation on top. This product does not interfere with this regimen. I am very happy I bought this instead of attempting to get a prescription for azelaic acid 20% cream. I admit I have never used the prescription azelaic acid so I can't give a comparison statement but this product is working and is significantly less expensive and easier to obtain since it doesn't require a prescription.”