What levels of the Dry Skin Index initiate dry-skin formation?

A fundamental issue impacting our personal skin care is the inability to sense the magnitude of drying stresses on skin. This really inhibits the timely and effective use of skin moisturizers and/or humidifier. The Dry Skin Index (DSI) measures these stresses, which are conveniently monitored using Dermidia’s DSI Sense + smartphone app. But what levels of the Dry Skin Index might trigger dry-skin formation?

The Dry Skin Index is broken down into five stress categories ranging from very low to very high. Previously we identified the optimum relative humidity associated hydrated skin, but not the DSI levels at which people should begin to hydrate skin. Fortunately, data derived from a study by Jin et al. (2021) allows us to identity key threshold levels.

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A humidifier supports better skin care

Use a humidifier to fight winter dry skin!

Millions of people use humidifiers to combat seasonal dry air and its impact on skin (e.g., “winter dry skin”). However, it may not always be clear how well they work and whether they really can support better skin care. These are important concerns, so I decided to conduct a simple test using a small room humidifier in my home office.

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