How young is too young for preventive skincare?

As tweens and teenagers stock up on beauty products thanks to the Sephora Kid trend, we ask experts how young is too young when it comes to skincare Harsh ingredients like parabens, silicones, and even hyaluronic acid can be too much for young skin. These may be advertised as acne-fighters, but they can make the skin more fragile. Retinoids and other powerful anti-ageing ingredients are a definite no-no for teenagers, says Dr. Deepali Bhardwaj