I don't post review very often. But I have been in such despair fighting my acne that I felt a urge to share my feedbacks - hoping that it will bring comfort to some readers. I am 40- out of the blue - for the last 3 months I have been fighting acne. Nothing changed in my diet, skin regiment. The acne was most present on my chins. My job required to look great every day- as the acne got worst, a depression started to settle in. I did some blood check to test hormones/ testosterone ( very popular with acne on the chin). Everything came back normal. I did a candida test ( all normal too). I did a no dairy/ no sugar diet. Drink liters of green tea a day. Changed my make up. NOTHING... After lot of researches, I order the Zinc..... BINGO. It has been 3 days ( taking 100 mg a day) and my skin is clearer - less oily- the acne is much much better and therefore mood is better :). Please note that I am also doing Blue U light twice a week- drinking lot of water and being on an organic diet. This might not work for everybody as Zinc has lot of side effects to consider. So ask your Revised opinion : too many side effects - did not work for me at the end . Sticking to a very healthy diet and exercise / mediatio