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Are You Suffering from Dryness? You May Have TEWL

Every cell in your body needs water. 

Water makes up more than half of your body weight. You lose water each day when you go to the bathroom, sweat, and even when you breathe. You lose water even faster when the weather is really hot, when you’re physically active, or if you have a fever– and sometimes you can see it in the mirror. 

What is TEWL? 

TEWL, or transepidermal water loss, is the process by which your skin loses water due to a damaged skin barrier. TEWL is a process that your skin naturally controls, but other external factors can impact it either positively or negatively. When your skin is healthy, TEWL is equivalent to skin hydration. When you have high levels of TEWL, it means something on either side of your skin barrier is messing with your natural process. TEWL mainly occurs throughout the night, which is why it’s important to invest in skincare that can provide enduring nourishment and protection.

What causes TEWL?

TEWL can be caused by a number of factors, such as humidity levels (low humidity increases TEWL) and certain topical treatments that strip moisture because they are high in pH.

Ways to recognize TEWL

If you are experiencing TEWL, you may notice persistent dryness, flakiness, itchiness, rough texture, and fine lines. These are the most common symptoms, but sometimes TEWL can even lead to more severe acne or eczema. If you’re experiencing these symptoms in the morning, you may need a new nighttime skincare routine.

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