bought this great product at walgreen's on a Wed. Applied a thin layer on my cheeks which have noticeable red rash, blotchiness(not officially diagnosed w/rosacea) for the past year, by Thursday morning the right cheek was 99% cleared up, the left cheek showed a great improvement., seems like the skin is smoother, more "even" toned. There is a slight sulfur smell, but it's worth putting up with. This is great stuff. I am so happy it is working for me so far. At walgreen's , it is hard to locate. It's sort of hidden way off in the corner by the asperin, pills, etc. why dont they have it with the skin care products? hmmm. anyway, I found it, and I'm glad I did.