Most commonly used to treat acne and rosacea, Azelaic Acid is naturally found in wheat, rye and barley. It works well for inflamed and aggravated skin as it is anti-bacterial and has anti-inflammatory properties. It is similar to hydroxy acids as it helps to regulate cell turnover which helps to calm and reduce congestion in problem skin.
It has also been proven to treat melasma which causes hyperpigmentation and can reduce dark spots left behind from old spots and blemishes. It is most effective on oily, acne-prone and congested skin types.