Azelaic Acid

One ingredient that even I only came to hear about over the past year is Azelaic Acid but it's already become one of my most recommended products and incredibly popular in my Facebook group.

What is it?
It is a gentle exfoliating acid that you leave on the skin to unclog pores and improve skin tone and texture. The thing that drew it to me was it can improve skin sensitivity which very few ingredients do successfully. It is also an antioxidant and you know how I feel about those (if you don't you can read how I feel about them here).