This was the first azelaic acid product I ever used, and I thought it was pretty good! The texture is pretty unique, and seems to be polarizing among those who use it, either you love it or hate it. It reminds me of a primer almost, and has a strange powdery finish, which I actually liked. It definitely needs to be applied last! It works very well at reducing redness and controlling breakouts.
Despite only being a 10% concentration, I felt this product was a lot harsher on my skin than other 10% concentration azelaic acid products I've used. This one may not be ideal for those with sensitive skin.