Sunscreen isn’t just a summer essential — it’s a daily skincare hero. Your skin needs protection every single day. - What Is Sunscreen? Sunscreen helps protect the skin from harmful ultraviolet (UV) rays from the sun. There are two main types of UV rays: UVA: Penetrates deep into the skin, causing aging, wrinkles, and pigmentation UVB: Affects the surface layer, leading to sunburns and skin cancer A good sunscreen blocks both — this is called broad-spectrum protection. - Why You Need It Every Day Even on cloudy days or indoors, UV rays can reach your skin. Daily sunscreen use helps: ✅ Prevent premature aging ✅ Reduce the risk of skin cancer ✅ Maintain an even skin tone and healthy barrier ✅ Protect against blue light and environmental stressors (with the right ingredients) - What’s Inside: Key Ingredients Sunscreens typically use a mix of active and supportive ingredients: Mineral (physical) filters — like zinc oxide or titanium dioxide, which reflect UV rays and are gentle on sensitive skin Chemical filters — like avobenzone or octinoxate, which absorb UV rays and convert them into heat Plus soothing and antioxidant ingredients such as niacinamide, red algae, or Centella Asiatica to calm and strengthen skin - Texture, Feel & Formulas Modern sunscreens come in a variety of textures designed for comfort: Lotions and creams  Gels or fluids Sticks, sprays, and even cushion compacts Today’s advanced formulas are lightweight, invisible, and comfortable enough for daily wear. - UVELLA’s Perspective At UVELLA, we aim to make daily sun broad-spectrum protection a natural part of your skincare routine. Our Daily Sun Serum and Active Sun Lotion are designed to be invisible and weightless.  Scientific Reference Moloney F.J., Collins S., & Murphy G.M. (2002). Sunscreens: safety, efficacy and appropriate use. American Journal of Clinical Dermatology, 3(3), 185–191. Reviewed by:Jungyoon Ohn, MD, PhDBoard-Certified Dermatologist

You’ve seen the labels: “With antioxidants for extra protection!” It sounds great—after all, UVA rays generate free radicals, and antioxidants neutralize them, right? But a 2011 study published in the Journal of the American Academy of Dermatology took a closer look… and found that the story is more complicated than it seems. 🔬 What the Study Tested Researchers evaluated 12 popular sunscreen products marketed as containing antioxidants.They measured: SPF (UVB protection) UVA Protection Factor (UVA-PF) RSF (Radical Skin Protection Factor) – How well the product blocks free radical formation AP (Antioxidant Power) – The actual contribution of antioxidants (independent of UV filters) The tests were done using ex vivo and in vitro lab methods, not on human subjects—but still very telling. 📊 What They Found RSF values were closely tied to UVA-PF → This means most radical protection came from UV filters, not antioxidants AP (Antioxidant Power) was zero in almost all products tested Only two products showed minimal antioxidant activity, and even then, it was very low 👉 In short: while many sunscreens include antioxidants, their real-life radical-neutralizing effect may be negligible—especially without stabilization or proper formulation. 💡 So What’s the Takeaway? The idea of UV filters + antioxidants is promising—but right now, most of the protection is still coming from the filters Antioxidants in sunscreen can still be helpful, if they are properly stabilized and at effective concentrations Don’t choose a sunscreen just because it claims to have antioxidants—check for broad-spectrum SPF and proven active ingredients first 💛 UVELLA’s Approach At UVELLA, we believe in smart formulation—not just trendy ingredients.That’s why we focus on: Proven broad-spectrum UV filters Clinically relevant concentrations of stabilized antioxidants Transparent formulation backed by dermatological science Because your skin deserves more than a label—it deserves real protection. 📚 Reference:Draelos, Z. D., et al. (2011). Ex vivo evaluation of radical sun protection factor in popular sunscreens with antioxidants. Journal of the American Academy of Dermatology, 65(3), 525–530. https://doi.org/10.1016/j.jaad.2010.02.070

"Our sunscreen makes the traditional separation between mineral and chemical sunscreens old-fashioned by minimizing their trade-offs, allowing you to choose the one that suits your needs while still getting balanced and effortless protection."   Should I choose a mineral or chemical sunscreen? It depends on your skin type, lifestyle, and personal preferences. Here’s a simple breakdown to help you decide: - How They Work Type How It Works Common Ingredients Mineral (Physical) Sits on top of the skin and reflects UV rays Zinc oxide, Titanium dioxide Chemical Absorbs UV rays and converts them into heat Avobenzone, Oxybenzone, Octinoxate, Tinosorb, etc. - Pros & Cons ✅ Mineral Sunscreen Pros: Gentle on sensitive skin Starts working immediately Reef-safe (zinc oxide & titanium dioxide) Lower risk of irritation or clogged pores Cons: Can leave a white cast (especially on deeper skin tones) May feel heavier in older formulas ✅ Chemical Sunscreen Pros: Lightweight, often invisible on the skin Blends easily into deeper skin tones Often more water- and sweat-resistant Cons: May cause irritation for sensitive skin types Needs about 15 minutes after application to become effective Some filters raise environmental concerns (e.g., coral reef safety) - Which One Is Right for You? Skin Type / Concern Best Match Sensitive or acne-prone ✅ Mineral Deep skin tones or makeup wearers ✅ Chemical Eco-conscious (reef-safe) ✅ Mineral Long-wear or high-sweat conditions ✅ Chemical Babies or young kids ✅ Mineral (pediatrician-recommended) UVELLA's Perspective The strict separation between “mineral” and “chemical” sunscreens is now considered a little old-fashioned. With modern formulation technology, we design both types to harness their strengths while minimizing trade-offs. Whether you prefer mineral purity or chemical comfort, UVELLA sunscreens deliver balanced, dermatologist-developed protection that feels effortless on your skin. Scientific Reference J Am Acad Dermatol. 2025 Apr;92(4):677–686. Reviewed by:Jungyoon Ohn, MD, PhDBoard-Certified Dermatologist

"Most people still get enough vitamin D through diet, supplements, or incidental sun exposure." “If you wear sunscreen, your body won’t make enough vitamin D.” But what does the science actually say? A study published in the Journal of the American Academy of Dermatology explored how different parts of the body contribute to vitamin D production—and what happens when sunscreen blocks UVB in those areas. Study Medthods Researchers exposed healthy adults to a controlled dose of UVB radiation and measured changes in serum vitamin D3 levels. Participants applied sunscreen to different regions: Head & neck, Arms, Trunk, Legs, Whole body. Then they measured how much vitamin D3 was produced after the exposure. What They Found Applying sunscreen to the entire body completely blocked vitamin D production from UVB Vitamin D production is proportional to exposed skin area—and yes, broad application of sunscreen can reduce it significantly. So, Should You Worry? Not necessarily. While sunscreen can reduce vitamin D synthesis: Most people don’t apply enough or frequently enough to block all UVB. Many people still get incidental sun exposure through daily life. Vitamin D can also be obtained through diet and supplements. UVELLA’s perspective Sun protection is essential—but so is skin health as a whole. At UVELLA, we promote balanced skincare supplemented with vitamin D to support your skin’s natural vitality. Scientific Reference Matsuoka, L. Y., et al. (1990). Use of topical sunscreen for the evaluation of regional synthesis of vitamin D3. Journal of the American Academy of Dermatology, 22(5), 772–775.  Reviewed by:Jungyoon Ohn, MD, PhDBoard-Certified Dermatologist

"Even though darker skin has some natural protection, daily sunscreen is still vital because it is the best way to prevent and reduce visible hyperpigmentation and hidden cellular damage."   There’s a common myth out there: “If you have dark skin, you don’t need sunscreen.” But a study shows why that belief is not only wrong — but potentially harmful. - Melanin Is Protective — But Not Perfect Yes, melanin provides some natural UV protection — roughly equivalent to SPF 13 in deeper skin tones. But that doesn’t mean it’s enough to fully prevent: Hyperpigmentation Photoaging DNA damage UV-induced immunosuppression This study specifically examined African-American skin. - What the Study Found Summer exposure led to a significant increase in hyperpigmentation. Hyperpigmentation was significantly reduced in those who wore sunscreen daily. The study concluded that sunscreen protects darker skin from UV damage. - Why This Matters For melanin-rich skin: Pigmentation concerns (melasma, post-inflammatory hyperpigmentation) are more visible and longer-lasting Photodamage may go unnoticed without redness — but cellular damage still occurs Prevention is far easier than treating post-summer dark spots - UVELLA’s Approach At UVELLA, we believe sun protection is for every tone, all year round. That’s why we formulate sunscreens that: Leave no white cast Feel lightweight and wearable on all skin types Support the skin barrier and target hyperpigmentation with skin-loving ingredients Because your melanin is powerful — but you still deserve the science of protection.   Scientific Reference Nash J.F. (2007). Demonstrating the value of sunscreen usage in African-American patients. Journal of the American Academy of Dermatology, 56(2 Suppl), AB167.   Reviewed by:Jungyoon Ohn, MD, PhDBoard-Certified Dermatologist

"Most adults aren’t applying sunscreen consistently."   We all know sunscreen is important. Are people actually using it? A study published in the Journal of the American Academy of Dermatology looked into this very question. What the Study Found Researchers surveyed over 4,000 U.S. adults to understand how often they used sunscreen on their face and other exposed areas when outdoors on a sunny day for at least an hour. Here’s what they found: Most adults aren’t applying sunscreen consistently. 🙍 Men 18.1% regularly used sunscreen on their face 19.9% on other exposed skin Only 14.3% used it on both 🙍 Women 42.6% used it on their face 34.4% on other exposed skin Just 29.9% covered both areas Why This Matters Sun exposure is the #1 preventable cause of: Premature skin aging Hyperpigmentation and uneven tone Skin cancers such as basal cell carcinoma, squamous cell carcinoma, and melanoma UVELLA Perspective At UVELLA, we believe awareness is step one—but usability is step two.That’s why we’re creating sunscreen that fits real life: Lightweight, elegant textures Daily wearability (even under makeup) Broad-spectrum protection you can trust Scientific Reference Holman, D. M., et al. (2015). Patterns of sunscreen use on the face and other exposed skin among U.S. adults. Journal of the American Academy of Dermatology, 73(1), 83–92.  Reviewed by:Jungyoon Ohn, MD, PhDBoard-Certified Dermatologist

"Sunburns are sending tens of thousands of people to the emergency room"   You might think a sunburn is no big deal — a little redness, maybe some peeling, and you're good to go. But a 2017 study published in JAMA Dermatology reveals something many don’t realize: Sunburns are sending tens of thousands of people to the emergency room—and costing millions in medical care. The Numbers Behind the Burn Researchers analyzed data from the 2013 Nationwide Emergency Department Sample and found that: An estimated 33,826 sunburn-related ER visits occurred that year These visits racked up $11.2 million in direct hospital costs The most affected groups were males under 18 and females aged 18–29 Most visits happened in the spring and summer, especially in the southern U.S. Why This Matters Sunburns aren’t just cosmetic issues—they’re signs of serious UV damage, which increase long-term risks for: Skin cancer Premature aging Acute injuries that require medical attentionSunburn is 100% preventable. Apply broad-spectrum sunscreen Wear protective clothing and hats Seek shade, especially during peak UV hours UVELLA’s Commitment At UVELLA, we believe protecting your skin shouldn’t be a luxury.That’s why our sunscreens are: Easy to apply Designed for daily comfort and consistency Backed by science and dermatological research Made to prevent both sunburn and skin damage Scientific Reference Guy, G. P. Jr., Berkowitz, Z., & Watson, M. (2017). Estimated cost of sunburn-associated visits to U.S. hospital emergency departments. JAMA Dermatology, 153(1), 90–92. Reviewed by:Jungyoon Ohn, MD, PhDBoard-Certified Dermatologist

"Sun protection has transformed from ancient beauty rituals using rice bran to a multifunctional skincare and broad-spectrum UV defense."   Have you ever wondered where it all began? A article in JAMA Dermatology gives us a fascinating look at the evolution of sun protection — from ancient rituals to modern science. - Ancient Wisdom: Before We Knew What UV Was Long before ultraviolet radiation was discovered, ancient cultures were already protecting their skin from the sun: Egyptians used rice bran, jasmine, and lupine — ingredients now known to have UV-absorbing or skin-repairing properties Greeks applied olive oil — not UV-protective, but hydrating Native American tribes used Tsuga canadensis (pine needles) to soothe sunburns Interestingly, their motivations were mostly cosmetic — lighter skin was often associated with beauty and class. - The Turning Point: The Discovery of UV 1801: Johann Wilhelm Ritter discovered UV radiation 1878: Otto Veiel identified tannins as potential sun-blocking agents 1920s: Scientists determined which UV wavelengths cause sunburn 1935: Eugène Schueller (founder of L’Oréal) created Ambre Solaire, the first modern sunscreen, using benzyl salicylate By 1978, the U.S. FDA  officially recognized sunscreens as scientifically regulated skincare essentials. - And Now? Today’s sunscreens are far more than UV shields — they’re multifunctional skincare. They hydrate, brighten, soothe, and protect from pollution, all while defending against UV damage. - UVELLA’s Tribute to History At UVELLA, we’re proud to continue the legacy of sun protection — bridging ancient botanicals and modern science. We draw inspiration from both tradition and innovation to bring you: Broad-spectrum SPF that feels invisible on skin Antioxidant-rich formulas that support long-term skin health A philosophy that treats sun care as self-care — not a chore Scientific Reference Aldahan A.S., Shah V.V., Mlacker S., & Nouri K. (2015). The History of Sunscreen. JAMA Dermatology, 151(12), 1316. https://doi.org/10.1001/jamadermatol.2015.3011 Reviewed by:Jungyoon Ohn, MD, PhDBoard-Certified Dermatologist

"UVA rays still pass through side glass, they cause cumulative damage and a higher rate of skin cancer on the exposed driver's side."   Most of us wear sunscreen when we're out and about. But what about when we’re just driving? A study in the Journal of the American Academy of Dermatology found that only 27% of people wear sunscreen while in a car — even though more than half wear it regularly on other days. Why? Because many believe car windows block UV rays. Unfortunately, that’s not entirely true. - UV Rays.... UVA rays, which cause aging and DNA damage, can penetrate glass. While your windshield blocks most UVB (burning) rays, side windows don’t stop UVA effectively. This means your driver-side face, arm, and hand are consistently exposed to UV damage. The study even found a higher rate of skin cancers on the left side (driver’s side) of the body. - Common Misconceptions “I don’t need sunscreen when I’m in the car.”→ False. UVA still gets through the glass. “The windows are closed, so I’m protected.”→ Glass stops wind — not UV rays. “I’m only driving for a few minutes.”→ Sun damage is cumulative. Even 10–15 minutes a day adds up. - What You Can Do Apply broad-spectrum SPF 30+ every morning — even on commute days. Focus on driver-side areas (face, neck, hands, arms). Reapply if you’re in the car for extended periods. - UVELLA’s Take At UVELLA, we believe sun protection should be daily, effortless, and complete. That’s why our sunscreens are crafted to feel like skincare — lightweight, invisible, and easy to apply, even on busy mornings when you’re just headed out for errands or a short drive. Scientific Reference Kim D.P., Levy R.M., & Draelos Z.D. (2013). Sunscreen use while driving. Journal of the American Academy of Dermatology, 68(6), 952–956.  Reviewed by:Jungyoon Ohn, MD, PhDBoard-Certified Dermatologist

"Even brief UV exposure causes cellular damage and stress in unprotected skin" "Harmful changes occur even when there is no visible sunburn or redness." We know sunscreen protects our skin from burns. But what about the invisible damage — at the cellular level? A study in JAMA Dermatology explored that question by examining what happens to moles when only half of them are covered in sunscreen and then exposed to UV radiation. Each mole was half protected and then exposed to simulated sunlight. - The Study Design Researchers selected 26 patients with benign moles. On each mole: One half was covered with sunscreen The other half was left unprotected Both halves were then exposed to solar-simulated UV light The moles were analyzed on microscopic examination. - What They Found The unprotected halves had: More visible redness and pigment More atypical melanocytes  Stronger cellular stress Even brief sun exposure without sunscreen can lead to microscopic cellular damage. - Why This Matters We often judge sun protection by whether we get a sunburn — but this study shows that cellular changes can occur even without visible redness. Skin remembers UV damage, even when you don’t feel it. - UVELLA’s Science-Driven Approach At UVELLA, we believe in preventing the damage you can’t see. That’s why we design sunscreens with: Broad-spectrum protection (UVA + UVB) High SPF for deep defense Antioxidants to neutralize cellular stress Scientific Reference Massone C., Wolf P., Gringschl S., et al. (2013). Effects of a chemical sunscreen on UV-induced changes of different histological features in melanocytic nevi. JAMA Dermatology, 149(7), 874–875.  Reviewed by:Jungyoon Ohn, MD, PhDBoard-Certified Dermatologist

"A well-formulated SPF can both protect against UV rays and serve as a daily moisturizer."   We all know sunscreen protects skin from UV rays — but what if it could also help keep your skin hydrated? Modern SPF formulas now do more than protect; they also moisturize. - Sunscreen That Hydrates? Yes, It’s Real. A 2013 study published in the Journal of the American Academy of Dermatology explored whether sunscreen could double as a moisturizer. Researchers compared: SPF 30 and SPF 50 lotions containing humectants vs. SPF 30 spray without humectants - What They Found Lotions with humectants showed significantly greater hydration at 4 and 8 hours. - Conclusion A well-formulated sunscreen can act as both sun protection and a daily moisturizer. - Why This Matters Many people skip sunscreen because they think it’s drying or chalky. But with the right ingredients — like humectants — sunscreen can: Hydrate dry or sun-damaged skin Improve skin texture and suppleness over time Replace a separate morning moisturizer in your routine - UVELLA’s Perspective At UVELLA, we believe sunscreen should feel like skincare — never a chore. Our daily SPF formulas are designed to protect, nourish, and restore with ingredients such as: Humectants for deep, lasting hydration Niacinamide to support the skin barrier Antioxidants to defend against everyday environmental stressors Scientific Reference Pinca R., Bansback N., & Kalia S. (2013). Enhancing skin hydration with topical sunscreen formulations. J Am Acad Dermatol. 68(4 Suppl):AB184. Reviewed by:Jungyoon Ohn, MD, PhDBoard-Certified Dermatologist

"Urban living exposes skin to air pollution that triggers oxidative stress and inflammation, leading to a damaged barrier and premature aging."   Living in a city means more than just dealing with traffic and noise — your skin faces daily exposure to particulate matter (PM), a key component of air pollution. These microscopic particles (PM2.5 and smaller) cling to the skin’s surface, penetrate pores, and trigger oxidative stress, inflammation, and even premature aging. Research shows PM can: Damage the skin barrier Cause chronic inflammation Lead to hyperpigmentation and sensitivity over time - Anti-Pollution Allies To combat these effects, modern skincare turns to barrier-supporting and antioxidant-rich ingredients that: Create a physical or biochemical shield on the skin Neutralize free radicals generated by pollution Strengthen the skin’s resilience over time - UVELLA’s Approach Ingredients such as red algae, niacinamide, Centella Asiatica, and plant polyphenols like resveratrol and rutin show promising results in reducing the effects of urban dust and PM on skin health. Urban pollution defense is no longer optional for maintaining healthy skin in the city. Scientific Reference Kim K.E., Cho D., & Park H.J. (2016). Air pollution and skin diseases: Adverse effects of airborne particulate matter on various skin diseases. Life Sciences, 152, 126–134.  Reviewed by:Jungyoon Ohn, MD, PhDBoard-Certified Dermatologist

"Sunscreen is now a multi-functional skincare product that offers broad-spectrum UV protection while simultaneously delivering hydration, soothing benefits, and supporting the long-term repair and resilience of your skin."    Most people see sunscreen as only UV protection, but today's formulas do much more. Your daily sunscreen now defends your skin while working to hydrate, soothe, and even repair it over time. - It Starts With Prevention   Skincare is shifting from "react and repair" to prevention. It's more effective and cheaper to protect skin than to reverse damage. Daily sunscreen is key, offering broad defense against UVA/UVB, pollution, and blue light to preserve collagen and resilience - Sunscreen That Hydrates   Sunscreen isn't drying; it can be an effective moisturizer. A scientific study showed that SPF lotions with humectants significantly improved hydration, even better than some standalone products. The correct formula can: 1) Keep skin soft and supple. 2) Improve smoothness and moisture balance. 3) Replace your morning moisturizer. - Repairing the Signs of Damage   Daily sunscreen not only protects but helps skin recover. Long-term use of broad-spectrum SPF can reverse structural sun damage, with some studies showing reduced solar elastosis after 24 months. This is a gradual, cellular-level repair that enables your skin to rebuild strength. - UVELLA’s Perspective   At UVELLA, we treat sunscreen as skincare. Our formulas are designed to nourish and protect: Humectants for lasting hydration Active ingredients to to soothe, brighten, and reduce the appearance of wrinkles Antioxidants to fight daily stressors Broad-spectrum SPF to defend against UVA/UVB rays We offer sun care that supports your skin's hydration, restoration, and long-term resilience, going beyond simple protection.   Scientific References Clin Cosmet Investig Dermatol. 2017 Aug 16;10:311–317. Dermatol Surg. 2016 Dec;42(12):1354–1361. J Invest Dermatol. 1983 Jan;80(1):56–59. Reviewed by:Jungyoon Ohn, MD, PhDBoard-Certified Dermatologist

"Sunscreen should be an essential part of your daily routine, even on cloudy days or when indoors, because UV exposure causes photoaging and sun damage."   It’s not only for beach days or hikes. Sunscreen is part of the everyday, because UV rays don’t take a break. They’re around year-round — even when the sky is gray or the air feels cool. - The Overcast Illusion Up to 80% of UV rays still reach your skin on cloudy days. UVB rays cause sunburns, while UVA rays are the quiet culprits — they slip through clouds, glass, and even car windows. That means your skin needs protection on overcast mornings, during your commute, and while sitting by a sunny window at work. - The Long Game of Sun Damage Sun damage doesn’t happen overnight. It builds slowly, showing up as fine lines, dark spots, uneven tone, and dullness — what we call photoaging. Photoaging is largely preventable. Daily sunscreen use helps maintain your skin barrier, prevent discoloration, and even reduce the risk of skin cancer. - Why We Still Skip It Most people skip sunscreen because of how it used to feel: too greasy, too chalky, or leaving that dreaded white cast. - UVELLA’s Perspective No stickiness. No white cast. No excuses. UVELLA Daily Sun Serum and Active Sun Lotion are invisible on all skin tones and feel weightless. They melt into your routine so effortlessly that applying sunscreen starts to feel like self-care, not a chore. - A Simple Habit with Real Impact The best skincare routine isn’t complicated — it’s consistent. Whether it’s sunny or cloudy, indoors or out, your skin deserves protection every single day. Applying sunscreen each morning is one small habit that pays off for years to come. Scientific References J Am Acad Dermatol. 2006 Jul;55(1):1-19. Photodermatol Photoimmunol Photomed. 2025 Jun 11;41(4):e70029. J Invest Dermatol. 2023 Aug;143(8):1406-1411. J Clin Oncol. 2011 Jan 20;29(3):257-63. J Clin Aesthet Dermatol. 2012 Sep;5(9):18-23. Reviewed by:Jungyoon Ohn, MD, PhDBoard-Certified Dermatologist