I avoided buying this booster for ages due to the price but always wanted to try it. Finally scored it on sale and have just finished my first tube. I had been considering laser for the pigmentation on my forehead however this azelaic acid has made such a difference I will put laser off for some time as the main patches have faded. It's not a miracle but it has faded to the point where I am comfortable with my skin. It is very lightweight, non-greasy and does not smell offensive. I really like the texture actually. My new favourite product. Apart from moisturiser and sunscreen I am happy to forego some other products in favour of this.