Dry skin is a result of lack of natural sebum (oil) production. Skin can feel rough and tight due to an unhealthy skin barrier, which means individuals with naturally dry skin need extra care to help stimulate oil production. The goal with this skin type is to use products that stimulate oil production and are occlusive, which helps repair and strengthen the skin's barrier.
Redness can be caused by many different factors - everything from a sunburn, to an allergic reaction, to Rosacea. Indications of redness are visible irritation, itchiness, heat, and inflammation. The goal with this skin type is to first determine the underlying cause for the redness and then incorporate products that will help calm and sooth irritation and inflammation