Why Skin Damage Is An "Inside Job"
The biggest threat to the health and appearance of your skin is something known as free radical damage. Free radicals occur naturally but their numbers can be increased to overwhelming levels by factors such as pollution, toxins and a poor diet. These highly unstable oxygen molecules wreak havoc if left unchecked, leading to critically high levels of inflammation, accelerated aging and multiple health problems. Your skin is where the earliest signs of free radical damage show up, since it is especially vulnerable to oxidative stress and inflammation. 

The good news is that your body has a built-in mechanism that utilizes antioxidants to neutralize free radicals. The bad news is that most of us are severely lacking the antioxidant firepower to get the job done.