So many things can trigger sensitive skin, including stress, harsh skincare ingredients such as retinol or exfoliating acids. But mainly at this time of year, environmental factors such as dry, cold air are factors. Dry skin can be more susceptible to potential irritants, and is therefore more prone to reactions from fragranced products in comparison to skin that isn’t dry. That said, any skin type can have a reaction. “Anyone can experience signs of fragrance sensitivity, which can affect the eyes, nose or even trigger a migraine,” says Dr Rubin. As a result, Dr Rubin explains that fragrance-free products can have benefits that extend beyond the skin.