Plantar Xerosis: How can it be treated?

If xerosis, denoting significant skin dryness, can affect all areas of the body, the feet are particularly prone. Indeed, in this area, the skin is naturally thicker, reaching up to 5 mm on the sole, while its thickness is about 2 mm on the face for example. Moreover, the sebaceous glands, the organs responsible for the synthesis of sebum, are absent from the feet, making them particularly vulnerable to dehydration and to xerosis. This intrinsic dryness is exacerbated by the mechanical pressure exerted during walking, which promotes the formation of cracks and calluses. By weakening the skin barrier, these increase transepidermal water loss (TEWL), thus intensifying xerosis.

The management of plantar xerosis relies on the daily application of a moisturising and nourishing cream with a rich texture.

To restore softness to the feet and alleviate the symptoms of plantar xerosis , it is recommended to use a treatment that contains humectants, emollients, and occlusives. A humectant is a substance that attracts and retains water in the skin, thus contributing to its hydration. An emollient is an ingredient that fills the intercellular cement of the horny layer, which helps to improve the barrier function and texture of the skin. An occlusive, also known as a film-forming agent, forms a barrier on the surface of the epidermis, preventing insensible water loss and promoting long-term hydration. The table below lists some examples of humectants, emollients, and occlusives commonly found in creams formulated to soothe xerosis.