audience:adult-womanSephora Tweens: A Parent's Guide to What's Actually in That CartMost products marketed to tweens at Sephora contain actives like retinol, niacinamide, and AHAs that are formulated for adult skin and can damage a developing barrier. The right tween routine is three products: a gentle cleanser, a barrier moisturizer, and a mineral SPF. Anything beyond that is being sold to your daughter, not designed for her — and the fastest way to know what’s appropriate is to look at the active ingredient and ask whether it’s age-appropriate before it goes in the cart.