Transepidermal Water loss (TEWL) is a something you need to know about especially if you wanna get more into taking care if your skin and purchasing skincare. Transepidermal water loss refers to the loss of water that passes through the epidermis and evaporates into the air. Our skin is composed of multiple layers: the epidermis (top), dermis (middle), and hypodermis (bottom). The epidermis is the outermost layer of skin (the one you see when you look in the mirror). TEWL is a natural process that happens to everyone. It’s your skin’s way of regulating its water content(your skin is a organ). However, TEWL can be made worse by things like trauma to the skin, such as a sunburn or a case of eczema, weather, and skincare or makeup products that are to drying can negatively affect TEWL levels.
*Once the skin barrier is damaged (comprised), hydration escapes quickly and easily, increasing your TRANS-EPIDERMAL WATER-LOSS (TEWL). And that’s when your skin will feel dehydrated and produce a lot more oil in an attempt to keep the remaining water in.
You may also have TEWL if dryness, flakiness, dullness, itchiness, rough texture and visible fine lines in your skin aged looking skin. It’s also thought that TEWL plays a big role in inflammatory skin conditions like acne and eczema.
You can’t stop TEWL, but you can minimize it and create a healthy balance of water in your skin.
🌱Get a good moisturizing routine.
🌱 Avoid harsh facial cleansers. Strong or high-pH face washes, body soaps, and wiping your face with straight alcohol can strip the skin’s moisture and make TEWL worse. Try a creamy cleanser or oil cleansing balm instead of a foaming cleanser.
🌱 Help your skin function properly by feeding it with nutritious food, lots of water, probiotic supplements.
🌱 Live a healthy lifestyle, and avoid alcohol, smoking, and toxic skin care products that strip the skin of its natural moisture barrier.
🌱 Choose your active ingredients wisely. Overusing active ingredients like retinol and alpha hydroxy acids can damage the skin’s barrier, making TEWL worse. Try to choose gentle actives (like mandelic or lactic acid instead of glycolic acid, ) and rotate your cleanser and products a few days a week.