Thomas says: “My top ingredients are ceramides for barrier support and azelaic acid to help with the rosacea symptoms ... proven to reduce redness after just 30 minutes, while soothing symptoms ...

Despite not being as common as some ingredients, azelaic acid is definitely worth swotting up on. This is what you need to know. It’s one that’s becoming increasingly popular after years of ...

Treating acne (and the discoloration it leaves behind) is no easy task, but the best azelaic acid serums can speed up the process. If you're a skin-care enthusiast, you've likely ...