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The skin is the largest organ of the human body, and fulfills numerous defensive and regulatory functions [ 1]. Its general structure has three main layers, called the epidermis, dermis and hypodermis. The skin-barrier function resides mainly in the epidermis, especially in the stratum corneum [ 2]. The epidermal barrier maintains skin homeostasis and protects the body against numerous external factors, such as chemical, environmental and physical stress, including ultraviolet (UV) radiation. It is important to highlight the individual characteristics and behavior of the epidermal barrier, as homeostasis differs according to individual phototypes and skin-exposure behaviors [ 3]. PROTECT SKIN EVEN ON CLOUDY DAYS: Daylight and sun exposure damages skin every day, all year round regardless of the weather. The effects might not be immediately apparent but daily use will help maintain skin health and prevent premature skin ageing
SCH is another important parameter for skin integrity, and lower-than-normal values are also frequently associated with skin-barrier dysfunction. In some publications it has been observed that the face has higher hydration-indices than other anatomical regions [ 26, 27, 28]; however, there is also literature in which the measurements are reversed, and the skin of the forearm is more hydrated than that of the face [ 27]. In our case, our findings were consistent with increased facial-hydration. PROTECT YOUR SKIN. The key to practicing safe sun is to protect and moisturize your skin. Our Our Original Sunscreen line is Free From Oxybenzone and Octinoxate, and Gluten and Cruelty Free, to ensure a fun day in the sun. We chose sunscreens with different compositions and different vehicle formulations. Further research could be carried out to assess whether the same composition in a different vehicle could modify skin-barrier function in a different way. It could be also interesting to develop research to assess if changes in only one excipient may alter the impact of the sunscreen on skin-barrier function. Elasticity is another important characteristic related to the biomechanical properties of the skin. A decrease in elasticity has been related to a higher SCORAD index in patients with atopic dermatitis, and has been observed to be affected at older ages, decreasing as age increases [ 16]. In our case, facial elasticity increased after the application of sunscreens, especially with facial sunscreen 3, which could be explained by the presence of antioxidants and especially by the presence of pure hyaluronic acid in its formula, an active ingredient known for its viscoelastic properties and one of the main components of the extracellular matrix [ 29, 30].The results obtained in our study shows that there are differences after applying sunscreen. Nevertheless, these differences were slight, and some of these parameters even improved. It is known that solar radiation has both harmful and beneficial effects on humans, for example, ultraviolet B radiation produces erythema and DNA damage; simultaneously, it induces the synthesis of previtamin D3. In addition to UVB rays, it has been shown that UVA1 rays also induce erythema, a very important factor in the pathogenesis of melanoma and other skin tumors such as keratinocytic carcinoma [ 4]. However, UVA rays also contribute to blood-pressure control and cardioprotection by inducing nitric oxide release from photosensitive derivatives of intracutaneous nitric oxide.
TRUST THE BUM. What does that mean? It means trust us, the ones who live on the beach and need products that work on even the most intense days in the sun. The simple truth is, when you make products to protect the ones you love, you make ‘em better. Measurements were carried out using all these probes (Tewameter ® TM 300, Corneometer ® CM825, pHmeter ® PH905, Mexameter ® MX18, Cut-ometer ® Dual MPA 580) adapted to an MPA 580 multiprobe system (MPA COURAGE+KHAZAKA electronicGmbH, MICROCAYA, S.L, Bilbo, Spain).
3 major benefits of applying a double layer of sunscreen
Looking to pare down your skincare routine and spend less time getting ready in the morning? The Live Tinted Huegard helps you do that: It's a three-in-one daily mineral SPF 30, moisturizer, and primer that protects skin from the sun while imparting a natural glow that looks beautiful both on its own or as a prep step for makeup. It comes out of the bottle with a subtle orange tint (which helps offset the look of a white cast on darker skin tones), and requires a bit of blending, but, according to our tester, feels lightweight nonetheless. "I liked how the orange tint allowed me to see where I was applying the sunscreen, ensuring that I applied it evenly," she explains. "It applied nicely on my olive skin, but it may not be the best for all undertones and skin tones." Mineral formulas (also called physical sunscreens) form a barrier on your skin that reflects or filters UVA and UVB rays. The dispersed zinc oxide and/or titanium dioxide formulas can be more difficult to spread on your skin and leave behind white cast, but they usually last longer than chemical formulas. If you’re going to be spending a lot of time in direct sunlight, then it’s always best to go for SPF 50, even if you want a tan, and especially if you’re having a beach or pool day. Trust us, you’ll still get a tan, but your skin will be much better protected from those harmful rays. You’ll need to reapply your body sunscreen every two hours or every time you get wet. SPF 50 only offers slightly higher UV protection (around 2%), but over a lifetime, this does make a very big difference.
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