Sensitive skin types — which include everything from mild sensitivity to dermatological issues such as psoriasis — really need to be careful about the ingredients they're putting on their faces. In a way, it's more about what you're not applying rather than what you are. For example, essential oils can be very disruptive (even though they're found in a lot of natural brands), and should be avoided, as should fragrances and dyes. Calming ingredients to look for include centella asiatica (cica), aloe vera, and chamomile.
Dull skin is often the result of inadequate exfoliation, so seeking a toner that helps buff away those dead cells, grime, and other buildup — aka a "glow tonic" — is important. The most common ingredients you'll find to help revitalize and brighten are AHAs such as glycolic and lactic acids. You can use these types of toners once or twice a week (sometimes daily, but do refer to the product application instructions), and then a more straightforward toner on alternating days.
