In my teens, I could not wait until I was 18. The reason of this was because I hoped that my pimples would go away. However, when I was 19 I suddenly had severe acne 😦 . After treating it with many creams and treatments, I decided to change my diet.
One thing i do every morning is drinking beet root juice on an empty stomach. After half an hour i start with my breakfast. Red beet juice purifiese the blood. When i was on vacation i did not drink it for two weeks and after those two weeks i had a lots of blemishes. So for me it is clear that red beet juice plays a role.
I recommend you to try this natural method to prevent an impure skin!