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10 sunscreen myths you can't afford to fall for

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10 sunscreen myths you can't afford to fall for

Attention sunscreen skeptics: The sun’s UV rays are coming for you, and you’re just making their job easier.

Summer is now upon us, which means more time in the sun — and more exposure to the ultraviolet radiation it emits. Longer-wavelength ultraviolet A rays can reach beneath the skin’s surface, causing it to age prematurely. Shorter-wavelength ultraviolet B rays affect the outermost layers of skin, causing sunburns and tans. (A third type of rays, ultraviolet C, is intercepted by Earth’s protective ozone layer.)

Both UVA and UVB damage the DNA in skin cells, causing mutations. These mutations can accumulate over time and cause tumors to grow. The more UV exposure you have, the greater the risk, according to the Skin Cancer Foundation.

Basal cell carcinoma is the most common type of skin cancer in the United States, followed by squamous cell carcinoma. About 5.4 million of these cancers combined are diagnosed each year, and they cause between 2,000 and 8,000 deaths, the American Cancer Society says.

Melanoma of the skin is both more rare and more deadly, affecting an estimated 100,640 Americans this year and resulting in 8,290 deaths, according to the National Cancer Institute.

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Sunscreens can protect you from these malignancies in one of two ways. Chemical sunscreens contain ingredients such as avobenzone that absorb UV rays. Mineral sunscreens rely on zinc oxide or titanium dioxide to block or reflect the rays. Either way, the solar radiation is unable to penetrate the skin and corrupt your DNA.

Here are 10 sunscreen myths you can’t afford to fall for:

Myth 1: As long as you don’t get a sunburn, you’re safe.

The reality: You don’t need to get a sunburn to put your skin at risk. UV exposure will compromise the DNA of unprotected skin — even if your skin looks normal to the naked eye — and the effects are cumulative, said Dr. Henry Lim, a photodermatologist at Henry Ford Health in Detroit who studies the effect of sunlight on skin.

“Each time the skin is damaged by the sun, with or without sunburn reaction, there is some damage that the skin would have to repair,” Lim said. “If that subclinical damage goes on often enough for a long enough period of time, the skin’s ability to be able to completely repair all that DNA damage will be compromised.”

Myth 2: Your body needs vitamin D, and sunscreen will keep you from getting it.

The reality: It only takes a small amount of sun exposure to produce all the vitamin D your body needs. One study of white people in the Boston area determined that 5 to 10 minutes of sun on the face, arms and legs two or three times a week during the summer months was enough to produce sufficient amounts of vitamin D.

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Even if you apply sunscreen, you’ll still get that minimum amount of sun exposure, Lim said. “When we use sunscreen, we don’t apply enough,” he said. “It’s just human nature.”

Dr. Anne Chapas, a dermatologist in Manhattan and clinical instructor at Mt. Sinai Medical Center, advises patients who are concerned about their vitamin D levels to protect their skin and seek out the nutrient in foods or take supplements.

“You do need vitamin D to be healthy, but there are multiple ways to get it,” she said.

Myth 3: The chemicals in sunscreen can cause cancer.

The reality: The active ingredients in sunscreens sold in the U.S. are regulated by the Food and Drug Administration, which has determined that they are safe and effective. The National Academies add that “sunscreen use is not linked to higher rates of any type of cancer.”

In fact, it’s the reverse that’s true, Chapas said: “If you’re trying not to get cancer, then wear sunscreen.”

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Los Angeles Dodgers first baseman Freddie Freeman sprays sunscreen on his face. Dermatologists recommend spraying it into your hand and then applying it to your face instead.

(Robert Gauthier/Los Angeles Times)

Myth 4: You don’t need to wear sunscreen when the UV index is low.

The reality: The UV index primarily measures UVB, which Lim calls “the sunburn spectrum.” Even if UVB is low, you still need to protect yourself from UVA.

“As long as there is light out there, there’s enough UVA” to induce tanning, cause wrinkles, and contribute to skin cancer risk, Lim said.

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Chapas concurred. “Even on cloudy days, about 80% of the sun’s rays come through and you can can still get sun damage,” she said.

Myth 5: You don’t need sunscreen if you have dark skin.

The reality: People of every complexion can get sun damage and skin cancer. In fact, “skin cancer in patients with darker skin tones is often diagnosed in later stages, when it’s more difficult to treat,” said Dr. Seemal Desai, president of the American Academy of Dermatology.

Chapas added that since darker skin is apt to produce melanin in response to sun exposure, it may become discolored more readily than lighter skin.

Myth 6: Mineral-based sunscreens are safer than chemical sunscreens.

The reality: Both types are safe to use, but there are fewer unknowns with mineral sunscreens since they are not absorbed into the skin, Lim said.

Chapas said that’s one reason why she prefers mineral sunscreens. She also appreciates their versatility, since they can be applied on top of makeup or moisturizer. “The challenge is that some of these formulations have a whitish cast to them, so you have to find one that works with your complexion,” she said.

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Myth 7: You can protect yourself from the sun by building up a “base tan.”

The reality: A tan can provide a small bit of protection, but it’s less than the equivalent of SPF 5, Lim said. That’s not nearly enough to make sunscreen unnecessary.

Besides, a tan itself is a sign of sun damage. “When our skin is exposed to UV light, it stimulates the production of melanin to prevent more UV from entering the skin and damaging the underlying skin cells,” Chapas said. “A tan isn’t healthy. A tan is actually your body trying to protect itself.”

Myth 8: The antioxidant astaxanthin will protect you from UV and act as an “internal sunscreen.”

The reality: There are two ways that antioxidants reduce the biological damage that comes with sun exposure, Lim said. When UVA rays harm DNA, they do so by causing oxidative damage to DNA, and antioxidants can help minimize it. In addition, when visible light interacts with the skin, it can cause cells to produce a type of destructive molecule called reactive oxygen species. Antioxidants can help counteract this process as well.

Including antioxidants in a sun protection regime makes sense, but they can’t do the job by themselves. “There are no pills that act as effectively as a sunscreen,” Chapas said.

If you do want to take an antioxidant to reduce sun damage, astaxanthin isn’t necessarily the best choice, Lim and Chapas agreed. The product Chapas recommends is from Heliocare.

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Myth 9: The chemicals in sunscreen get into your bloodstream and build up over time.

The reality: There are no long-term studies of the blood of people who use sunscreen regularly, so there is no data to say whether this is true or false. However, the chemicals are excreted in urine, which is a sign that they don’t linger in the body, Lim said.

People who are wary of chemical sunscreens can opt for mineral sunscreens instead, he said.

Myth 10: You can keep sun damage at bay by wearing a good hat.

The reality: A wide-brimmed hat will definitely help protect you from the sun. This is particularly true for people who are bald or have thinning hair, since “we don’t have great sunscreens for hair-bearing areas,” Chapas said.

However, a hat will only block UV rays coming from above. Without sunscreen, you’ll still be vulnerable to rays that reflect off the water, sand, or urban surfaces like a sidewalk and come at your skin from below. (This is also why you need sunscreen even if you’re in the shade.)

“There are multiple actions we need to take,” Lim said. “Each one of them is helpful, but it’s not as good as when you put everything together.”

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Very little plastic being recycled in California as state efforts falter

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Very little plastic being recycled in California as state efforts falter

California touts itself as a leader on the problem of plastic garbage, but recent developments suggest otherwise.

A new report issued by the state’s waste agency shows plastic yogurt containers, shampoo bottles and restaurant takeout trays are being recycled at rates only in the single digits.

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Polypropylene, labeled as #5 on packaging, is used for yogurt containers, margarine tubs and microwavable trays. Only 2% of it is getting recycled. Colored shampoo and detergent bottles, made from polyethylene, or #1 plastic, are getting recycled at a rate of just 5%.

Other plastics, including ones promoted as highly recyclable, such as clear polyethylene bottles, which hold some medications, or hard water bottles, are being recycled at just 16%.

No plastic in the report exceeds a recycling rate of 23%, with the majority reported in just the single digits.

Adding to this disquieting assessment, CalRecycle also just pulled back regulations that were supposed to finalize a landmark single-use plastic law known as Senate Bill 54 — a law designed to make the majority of packaging waste in the state recyclable or compostable by working with the plastic and packaging industries.

The report and delay have sparked a wide variety of reactions by those who have closely watched the law as it was written and implemented.

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The proposed regulations were regarded as friendly to industry. As a result, some are hopeful that CalRecycle’s decision to pull them back for tweaking means the agency will make the law stronger. Others say the two developments just show the state has never really been serious about plastic recycling.

“California’s SB 54 … will NEVER increase the recycling rates of these items … because cartons and plastic packaging are fundamentally not technically or economically recyclable,” said Jan Dell, the founder of Orange County-based Last Beach Cleanup, an anti-plastic organization.

Industry representatives are also expressing disappointment, saying the more delays and changes the state makes, the harder it is “for California businesses to comply with the law and implement the resulting changes,” said John Myers, a spokesman for the California Chamber of Commerce, which represents companies that will be affected.

Reports on abysmally low rates of recycling for milk cartons and polystyrene have been widely shared and known. But the newest numbers were still a grim confirmation that there are few options for dealing with these materials.

According to one state analysis, 2.9 million tons of single-use plastic and 171.4 billion single-use plastic components were sold, offered for sale or distributed in California in 2023.

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Single-use plastics and plastic waste more broadly are considered a growing environmental and health problem. In recent decades, plastic waste has overwhelmed waterways and oceans, sickening marine life and threatening human health.

Last spring, the Newsom administration was accused of neutering the regulations that CalRecycle had initially proposed to implement the law. The changes excluded all packaging material related to produce, meat, dairy products, dog food, toothpaste, condoms, shampoo and cereal boxes, among other products. These are all products that might fall under the purview of the U.S. Food and Drug Administration and the U.S. Department of Agriculture.

It also opened the door to “alternative” recycling, such as chemical recycling, which environmentalists say is polluting, and was banned in the language of the law.

The waste agency then submitted those draft regulations to the Office of Administrative Law, whose lawyers and staff review proposed regulations to ensure they are “clear, necessary, legally valid, and available to the public” before finalizing them. They were set to release their determination on Friday; CalRecycle pulled the regulations back before the office issued its determination.

Neither the law office nor governor’s office responded to requests for comment.

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Melanie Turner, CalRecycle’s spokeswoman, said the agency withdrew its proposed regulations “to make changes … to improve clarity and support successful implementation of the law,” and its revisions were focused on areas that dealt with “food and agricultural commodities.”

California State Sen. Ben Allen (D-Santa Monica), author of the original legislation, called the delay “entirely avoidable” in a statement, but said it would allow CalRecycle an “opportunity to ensure the regulations truly follow the law as it was signed.”

He urged the waste agency and Newsom’s administration not to “allow broad, sweeping exemptions that would undermine the program and increase costs for ratepayers.”

Critics of the watered-down regulations, such as Anja Brandon, the director of plastics policy for the Ocean Conservancy, said she wasn’t surprised by the withdrawal.

The proposed regulations “would have gone beyond CalRecycle’s authority by creating a sweeping categorical exclusion for food and agricultural packaging — effectively a loophole that would have allowed producers to continue putting vast amounts of plastic packaging into the marketplace, completely undermining SB 54’s goals and success,” she said in a text message.

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Turner said CalRecycle will conduct a 15-day comment period — although when that begins has not yet been divulged.

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Cancer survival rates soar nationwide, but L.A. doctors warn cultural and educational barriers leave some behind

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Cancer survival rates soar nationwide, but L.A. doctors warn cultural and educational barriers leave some behind

The American Cancer Society’s 2026 Cancer Statistics report, released Tuesday, marks a major milestone for U.S. cancer survival rates. For the first time, the annual report shows that 70% of Americans diagnosed with cancer can expect to live at least five years, compared with just 49% in the mid-1970s.

The new findings, based on data from national cancer records and death statistics from 2015 to 2021, also show promising progress in survival rates for people with the deadliest, most advanced and hardest-to-treat cancers when compared with rates from the mid-1990s. The five-year survival rate for myeloma, for example, nearly doubled (from 32% to 62%). The survival rate for liver cancer tripled (from 7% to 22%), for late-stage lung cancer nearly doubled (from 20% to 37%), and for both melanoma and rectal cancer more than doubled (from 16% to 35% and from 8% to 18%, respectively).

For all cancers, the five-year survival rate more than doubled since the mid-1990s, rising from 17% to 35%.

This also signals a 34% drop in cancer mortality since 1991, translating to an estimated 4.8 million fewer cancer deaths between 1991 and 2023. These significant public health advances result from years of public investment in research, early detection and prevention, and improved cancer treatment, according to the report.

“This stunning victory is largely the result of decades of cancer research that provided clinicians with the tools to treat the disease more effectively, turning many cancers from a death sentence into a chronic disease,” said Rebecca Siegel, senior scientific director at the American Cancer Society and lead author of the report.

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As more people survive cancer, there is also a growing focus on the quality of life after treatment. Patients, families and caregivers face physical, financial and emotional challenges. Dr. William Dahut, the American Cancer Society’s chief scientific officer, said that ongoing innovation must go hand in hand with better support services and policies, so all survivors — not just the privileged — can have “not only more days, but better days.”

Indeed, the report also shows that not everyone has benefited equally from the advances of the last few decades. American Indian and Alaska Native people now have the highest cancer death rates in the country, with deaths from kidney, liver, stomach and cervical cancers about double that of white Americans.

Additionally, Black women are more likely to die from breast and uterine cancers than non-Black women — and Black men have the highest cancer rates of any American demographic. The report connects these disparities in survival to long-standing issues such as income inequity and the effects of past discrimination, such as redlining, affecting where people live — forcing historically marginalized populations to be disproportionately exposed to environmental carcinogens.

Dr. René Javier Sotelo, a urologic oncologist at Keck Medicine of USC, notes that the fight against cancer in Southern California, amid long-standing disparities facing vulnerable communities, is very much about overcoming educational, cultural and socioeconomic barriers.

While access to care and insurance options in Los Angeles are relatively robust, many disparities persist because community members often lack crucial information about risk factors, screening and early warning signs. “We need to insist on the importance of education and screening,” Sotelo said. He emphasized that making resources, helplines and culturally tailored materials readily available to everyone is crucial.

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He cites penile cancer as a stark example: rates are higher among Latino men in L.A., not necessarily due to lack of access, but because of gaps in awareness and education around HPV vaccination and hygiene.

Despite these persisting inequities, the dramatic nationwide improvement in cancer survival is unquestionably good news, bringing renewed hope to many individuals and families. However, the report also gives a clear warning: Proposed federal cuts to cancer research and health insurance could stop or even undo these important gains.

“We can’t stop now,” warned Shane Jacobson, the American Cancer Society’s chief executive.

“We need to understand that we are not yet there,” Sotelo concurred. ”Cancer is still an issue.”

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Clashing with the state, L.A. City moves to adopt lenient wildfire ‘Zone Zero’ regulations

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Clashing with the state, L.A. City moves to adopt lenient wildfire ‘Zone Zero’ regulations

As the state continues multiyear marathon discussions on rules for what residents in wildfire hazard zones must do to make the first five feet from their houses — an area dubbed “Zone Zero” — ember-resistant, the Los Angeles City Council voted Tuesday to start creating its own version of the regulations that is more lenient than most proposals currently favored in Sacramento.

Critics of Zone Zero, who are worried about the financial burden and labor required to comply as well as the detrimental impacts to urban ecosystems, have been particularly vocal in Los Angeles. However, wildfire safety advocates worry the measures endorsed by L.A.’s City Council will do little to prevent homes from burning.

“My motion is to get advice from local experts, from the Fire Department, to actually put something in place that makes sense, that’s rooted in science,” said City Councilmember John Lee, who put forth the motion. “Sacramento, unfortunately, doesn’t consult with the largest city in the state — the largest area that deals with wildfires — and so, this is our way of sending a message.”

Tony Andersen — executive officer of the state’s Board of Forestry and Fire Protection, which is in charge of creating the regulations — has repeatedly stressed the board’s commitment to incorporating L.A.’s feedback. Over the last year, the board hosted a contentious public meeting in Pasadena, walking tours with L.A. residents and numerous virtual workshops and hearings.

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Some L.A. residents are championing a proposed fire-safety rule, referred to as “Zone Zero,” requiring the clearance of flammable material within the first five feet of homes. Others are skeptical of its value.

With the state long past its original Jan. 1, 2023, deadline to complete the regulations, several cities around the state have taken the matter into their own hands and adopted regulations ahead of the state, including Berkeley and San Diego.

“With the lack of guidance from the State Board of Forestry and Fire Protection, the City is left in a precarious position as it strives to protect residents, property, and the landscape that creates the City of Los Angeles,” the L.A. City Council motion states.

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However, unlike San Diego and Berkeley, whose regulations more or less match the strictest options the state Board of Forestry is considering, Los Angeles is pushing for a more lenient approach.

The statewide regulations, once adopted, are expected to override any local versions that are significantly more lenient.

The Zone Zero regulations apply only to rural areas where the California Department of Forestry and Fire Protection responds to fires and urban areas that Cal Fire has determined have “very high” fire hazard. In L.A., that includes significant portions of Silver Lake, Echo Park, Brentwood and Pacific Palisades.

Fire experts and L.A. residents are generally fine with many of the measures within the state’s Zone Zero draft regulations, such as the requirement that there be no wooden or combustible fences or outbuildings within the first five feet of a home. Then there are some measures already required under previous wildfire regulations — such as removing dead vegetation like twigs and leaves, from the ground, roof and gutters — that are not under debate.

However, other new measures introduced by the state have generated controversy, especially in Los Angeles. The disputes have mainly centered around what to do about trees and other living vegetation, like shrubs and grass.

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The state is considering two options for trees: One would require residents to trim branches within five feet of a house’s walls and roof; the other does not. Both require keeping trees well-maintained and at least 10 feet from chimneys.

On vegetation, the state is considering options for Zone Zero ranging from banning virtually all vegetation beyond small potted plants to just maintaining the regulations already on the books, which allow nearly all healthy vegetation.

Lee’s motion instructs the Los Angeles Fire Department to create regulations in line with the most lenient options that allow healthy vegetation and do not require the removal of tree limbs within five feet of a house. It is unclear whether LAFD will complete the process before the Board of Forestry considers finalized statewide regulations, which it expects to do midyear.

The motion follows a pointed report from LAFD and the city’s Community Forest Advisory Committee that argued the Board of Forestry’s draft regulations stepped beyond the intentions of the 2020 law creating Zone Zero, would undermine the city’s biodiversity goals and could result in the loss of up to 18% of the urban tree canopy in some neighborhoods.

The board has not decided which approach it will adopt statewide, but fire safety advocates worry that the lenient options championed by L.A. do little to protect vulnerable homes from wildfire.

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Recent studies into fire mechanics have generally found that the intense heat from wildfire can quickly dry out these plants, making them susceptible to ignition from embers, flames and radiant heat. And anything next to a house that can burn risks taking the house with it.

Another recent study that looked at five major wildfires in California from the last decade, not including the 2025 Eaton and Palisades fires, found that 20% of homes with significant vegetation in Zone Zero survived, compared to 37% of homes that had cleared the vegetation.

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