Articles tagged with Sunscreen
Researchers successfully isolated highly pure geometric isomers of phytoene and phytofluene, revealing distinct ultraviolet absorption characteristics and different responses to light- and heat-induced isomerization. The study demonstrated strong UV-A-shielding capacity and antioxidant activity for these colorless carotenoids.
Researchers engineered E. coli microbes to produce the UV-protective compound gadusol, increasing yield by nearly 93 times and showing promise in antioxidant tests. The compound may become an attractive ingredient for sunscreens and skin-care products, offering a greener alternative to traditional ingredients.
Researchers at the University of São Paulo discovered that spent hops can be used as an active ingredient in sunscreens. The study found that the reused substance is more effective than traditional substances, due to the elimination of volatile compounds involved in beer production.
Researchers found that sunscreens with the same SPF of 50 and active ingredients can range from $0.04 to $3.79 per application, highlighting huge variations depending on product price and skin exposure.
Researchers at UCLA Health Jonsson Comprehensive Cancer Center developed a new zinc oxide formulation that significantly reduces the white, chalky cast associated with traditional mineral sunscreens. The tetrapod-shaped particles provide strong protection against UV radiation while staying evenly distributed in the sunscreen.
Researchers discovered that mycosporine-like amino acids (MAAs) can block a key enzyme involved in blood pressure control and offer antioxidant effects. MAAs are naturally occurring compounds found in algae and cyanobacteria, which also act as natural sunscreens.
Researchers unveil ultra-thin TiO2 flakes that outperform traditional nanoparticles on transparency, penetration, phototoxicity and spectrum. The new sunscreen platform achieves unparalleled NAF, negligible skin permeation and reduced DNA-damage risk.
The BfR emphasizes that vitamins and minerals are essential but unnecessary additional intake can lead to health issues. The institute also discusses various health risks associated with food supplements, including plant-based ingredients.
Researchers found no significant genotoxic effects of triazine UV filters in bacterial reverse mutation, chromosomal aberration, and micronucleus assays. Phototoxicity assessments also confirmed safety using 3T3 neutral red uptake and guinea pig models. The results support the use of these filters in topical applications.
A study found that teenage girls using multiple products on their faces increase the risk of skin irritation and allergy. The average cost of a daily skin care regimen is $168, with some costing over $500.
Researchers from CNRS found that applying a mixture of sunscreen and insect repellent simultaneously decreases UV protection. The study used skin biopsies and computer tool analysis to measure the stress response of skin cells to radiation.
Researchers investigated skin cancer risk perceptions and sun-protective behaviors in US adults, finding associations between sociodemographic factors and sunburn risks. Higher education levels, Hispanic origin, and income groups were linked to lower sunburn risks, while married or partnered individuals had higher risks.
New study highlights significant gaps in understanding how sunscreens affect marine ecosystems, with chemicals entering the environment through various pathways. Researchers emphasize the need for comprehensive studies to understand the effects of UV filters on marine life and potential risks to human health.
A new formula protects against both UV light and heat from the sun using radiative cooling. The prototype sunblock kept human skin up to 10.8 F (6.0 C) cooler than bare skin, demonstrating SPF of about 50 and no irritation.
Researchers developed a lignin sub-microsphere loaded with TiO2 for enhanced sunscreen capabilities, achieving SPF 42.93 and improved color properties.
Researchers investigated solar radiation's effects on skin microbiome, discovering it can create a damaged skin barrier. The study proposes innovative sun protection methods that safeguard both skin integrity and microbiome balance.
A Swansea University-led project aims to address the concerning rise of skin cancer in Wales by exploring current perceptions of tanning among children, parents/carers, and educators. The results will support the development of a new sun-safety educational toolkit for the Welsh curriculum.
Researchers found that injecting cross-linked hyaluronic acid dermal filler into photoaged skin stimulates collagen production within weeks, leading to short-term and long-term clinical improvements. The filler promotes the accumulation of new collagen over time, reducing wrinkles and improving skin elasticity.
Researchers discovered traces of sunscreen agents in Arctic snow, with highest concentrations found in winter. The study suggests these contaminants are transported from lower latitudes via atmospheric circulation.
Scientists developed a synthetic melanin that accelerates wound healing and protects against sun damage. The cream also quiets the immune system, allowing for continuous repair and reducing inflammation.
Researchers at McGill University found that people who use sunscreen are more likely to develop skin cancer due to inadequate application or excessive sun exposure. Sunscreen is not the most effective way to protect against skin cancer, with clothing and avoidance being better options.
New research by UMass Amherst economist Brandyn Churchill links state-level 'SUNucate' laws to increased interest in sun protection, with a notable increase in sunscreen use among high school students. The legislation is associated with higher Google search volumes and awareness among historically low-users.
Researchers found human metabolites, pharmaceuticals, illicit drugs, and sunscreens in stream water, altering chemical and microbial fingerprint. Human recreation also stirred up sediments, raising metal concentrations and potentially affecting wildlife.
A new study from the University of South Australia reveals that golfers have a higher lifetime prevalence of skin cancer compared to the general population. The research highlights the importance of sun protection strategies for golfers, who spend extended periods in the sun.
New research reveals that sunscreen contamination may be less harmful to wildlife than previously thought, with exposure posing a low risk to small aquatic animals compared to individual chemicals.
Researchers at McGill University have made a major breakthrough in understanding the fundamental structure of melanin, a pigment that gives humans their skin, eye, and hair color. The study revealed that a specific component of melanin can convert light into heat across all wavelengths, providing broad-spectrum protection.
Researchers have developed a simple green process to extract both keratin and melanin from human hair without harsh chemicals or excessive waste. The extracted compounds have antioxidative properties and can help shield against ultraviolet light, making them suitable for biomedical applications.
A study found that adding rosmarinic acid to sunscreen increases sun protection factor by over 41% and reduces the need for synthetic chemicals. The natural antioxidant also provides anti-aging benefits, making it a potential multifunctional compound for improved skin health.
Researchers developed a coral-reef-friendly sunscreen by using polymerization to create large molecules that block UV radiation without penetrating skin or coral. The new filter was found to be more effective at preventing sunburn in mice than existing sunscreens, while also being safe for coral and algae.
Lichen-forming fungi have evolved unique gene clusters to produce orange 'sunscreen' pigments, allowing them to thrive in sunny environments. The discovery of a critical ABC transporter gene within the pigment gene cluster provides a potential hypothesis for toxicity avoidance in these organisms.
Fossil pollen contains compounds that function like sunscreen, protecting plants from UV-B radiation. The discovery supports the theory of a collapse of the Earth's ozone layer contributing to the end-Permian mass extinction event.
A new survey of 17,000 Europeans found that 8 in 10 believe tans are attractive and healthy, despite decades of awareness campaigns linking sun exposure to skin cancer and aging. The study also revealed low levels of adherence to sun protection habits, with only 1 in 10 using all forms of protection.
Researchers propose a roadmap for developing reproducible human-free sunscreen testing, reducing ethical concerns and increasing innovation in sunscreen development. The Australian Radiation Protection and Nuclear Safety Agency and Cancer Council Victoria support the shift, emphasizing the importance of sun protection and prevention.
Researchers developed an iron oxide-based ultraviolet-absorbing powder material, which can neutralize UV radiation and is safer than titanium dioxide. The material was found to have comparable performance and stability to TiO2 materials currently used in sunscreens.
Researchers discovered that stressed plants produce salicylic acid, a protective hormone, to counteract stress caused by climate change. This discovery could help plants survive increasing stress and ultimately protect the food supply.
A new study found that people over 50 are more likely to use sunscreen if they believe it prevents sunburn, while those who think it takes too much time are less likely. The researchers suggest using reminders from romantic partners or focusing on skin cancer risk as effective messaging strategies.
A new Stanford University study reveals that sunscreens containing oxybenzone can damage coral reefs, hastening their demise. The researchers found that oxybenzone forms damaging radicals when exposed to sunlight and can also disrupt coral defense mechanisms.
New research found that 62% of tinted sunscreens have only one shade option, with tone compatibility being the most important criterion. The study suggests that the beauty industry and dermatologic field need to improve diversity and offer more options for tinted sunscreen formulations tailored to people with skin of color.
A new study at the University of Bath found that a key ingredient is missing from all sunscreens, leaving skin vulnerable to damage. The researchers identified iron-trapping extracts that can improve protection against UV rays and oxidative stress, reducing the risk of aging and cancer.
Mblue Labs releases a coral-safe, broad-spectrum sunscreen containing Methylene Blue, which repairs photo-aging and delays skin aging. The product replaces Oxybenzone, a chemical UV blocker linked to coral reef destruction, providing safer protection for consumers and the environment.
A survey study of US youth aged 14-24 found that they understand the short-term risks of sun damage, yet experience high numbers of self-reported burns. Despite using sunscreen, nearly all participants reported skin injuries.
Researchers discovered that zinc oxide degrades other UV absorbers, reducing UVA protection by up to 91.8% after two hours of sunlight exposure. This could lead to increased formula toxicity and decreased sunscreen effectiveness, prompting calls for innovative new ingredients.
A new OSU study reveals that sunscreen containing zinc oxide loses its effectiveness and becomes toxic after just two hours of exposure to ultraviolet radiation. The research used zebrafish to test the toxicity of photodegradation products, finding significant increases in defects in the fish.
Researchers found that combining zinc oxide with small-molecule UV filter ingredients reduced UVA protection by 84.3-91.8% compared to non-mineral sunscreens. The study also showed toxic effects on zebra fish embryos when exposed to sunscreen mixtures containing zinc oxide.
Researchers studied blue rice corals, which produce a natural sunscreen pigment that may help them recover from bleaching and thrive in warmer oceans. This discovery sheds light on how some coral species can better withstand climate change and ocean warming.
Methylene Blue, a century-old medicine, has been found to be an effective UVB blocker that absorbs UVA and UVB rays, promotes DNA damage repair, and is safe for coral reefs. The study suggests it could become an alternative sunscreen ingredient, supporting the environment and human skin health.
Sunscreen reduces skin cancer risk by blocking solar radiation; use of sunscreen is crucial beyond just sun protection, also for premature aging prevention.
A Penn State research team conducted field tests on three commonly used mineral-based aerosol sunscreens, finding trace nanoparticles but at safe levels. The study suggests that the canister design and active ingredients are unlikely to produce vastly different amounts of nanoparticles.
A new study by Swansea University scientists has found that mycosporine-like amino acids, nature's UV sunscreens, are increased when exposed to far-red light. This discovery challenges current understanding of their role in temperature regulation and environmental balance.
Research by University of Alberta biologists reveals that common sunscreen ingredients, such as avobenzone and oxybenzone, are detrimental to freshwater-dwelling crustaceans like the water flea Daphnia magna. Long-term exposure can be lethal, even at short distances from popular beach areas.
A face-aging mobile app reduced UV exposure awareness in Brazilian teens, increasing sunscreen use and protective behaviors.
A new study published in Journal of Functional Foods finds that daily BioCell Collagen ingestion reduces wrinkles, increases skin elasticity, and maintains hyaluronic acid content in humans. The supplement's unique matrix of hydrolyzed collagen type II peptides, chondroitin sulfate, and hyaluronic acid helps combat UVB-induced photoaging.
A randomized clinical trial evaluated the absorption of six sunscreen active ingredients in four formulations, with all ingredients surpassing FDA thresholds for potentially waiving additional safety studies. The study highlights the need for further research on sunscreen ingredient exposure and its effects.
Researchers have discovered a molecule that absorbs ultraviolet light and then disperses it in a 'flamenco-style' dance, making it ideal for use as a UV filter in sunscreens. The molecule is eco-friendly, easy to synthesize, and lasts longer than industry-standard sunscreens.
A team of green chemists from the University of the Witwatersrand has developed a sustainable method to produce potential sunscreens using cashew nut shells. The new aromatic compounds show good UVA and UVB absorbance, protecting humans, livestock, and polymers from harmful sun rays.
Sunscreens release aluminum, silica, and phosphorous into seawater after UV treatment, potentially harming marine ecosystems. On a typical summer day at the beach, beachgoers could increase coastal waters' aluminum levels by 4% and titanium by almost 20%
A new type of UV detection sticker has been shown to effectively remind people to reapply sunscreen during outdoor events. The study found that 80% of participants with the stickers reapplied sunscreen within a day, compared to 68% in the control group. The stickers were well-received by fans and may help reduce sunburn cases in Queens...
A study found that nearly all Pinterest pins for homemade sunscreens positively portrayed their effectiveness but offered insufficient UV radiation protection. The researchers emphasized the importance of using commercially sold and regulated sunscreen products to protect against skin cancer.
Researchers found that using high UVA protection factor sunscreen allows for better vitamin D synthesis due to increased UVB transmission. Despite concerns, optimal sunscreen use does not harm vitamin D production, according to a new study published in the British Journal of Dermatology.
A clinical trial found that all four tested sunscreen active ingredients (avobenzone, oxybenzone, octocrylene, and ecamsule) were detected in blood samples at levels exceeding the FDA's recommended toxicology threshold. The study's limitations include lack of exposure to heat, sunlight, or humidity, which may impact absorption rates.