Oily skin is caused by an over production of sebum (oil), and is more prone to blemishes, requiring more cleansing and exfoliating. The goal with this skin type is to use products that balance the skin's oil production and exfoliate the skin to reduce excess oil and dead skin buildup in the pores.
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