Natural Sunscreen and Skin Cancer: Why Mineral Zinc Oxide Protects and Nourishes Your Skin
Living on Maui means living in the sun. It pours over our beaches, our gardens, and our keiki as they play outside year round. That sunshine is a gift, but it also means our families need real protection. Skin cancer is the most common cancer in the United States, and the American Academy of Dermatology estimates that one in five Americans will develop it in their lifetime. Roughly 9,500 people are diagnosed every single day.
Here is the encouraging part. Of all the cancers, this is among the most preventable. The Skin Cancer Foundation reports that about 90 percent of non-melanoma skin cancers are linked to ultraviolet radiation from the sun. That means the choices we make about sun protection genuinely matter. The question for families who care about clean, natural living is simple. How do we protect our skin without slathering on ingredients we would rather not absorb?
At Mālama ʻOhana, we believe you should not have to choose between effective protection and a clean ingredient list. That is exactly why we created Lā Sunscreen.
Not All Sun Protection Works the Same Way
Sunscreens fall into two broad families. Chemical sunscreens use synthetic filters such as oxybenzone, octinoxate, avobenzone, and homosalate. These work by absorbing ultraviolet light and converting it to heat inside your skin. Mineral sunscreens, sometimes called physical sunscreens, use zinc oxide or titanium dioxide to sit on top of the skin and reflect, scatter, and absorb the sun's rays before they ever penetrate.
The difference is more than academic. In 2019 and again in 2020, researchers published two randomized clinical trials in the Journal of the American Medical Association (JAMA) showing that common chemical filters are absorbed through the skin and into the bloodstream at levels far above the threshold the FDA uses to trigger further safety study. Oxybenzone, in particular, was detected in plasma at concentrations many times higher than that benchmark. Scientists have since found it in urine, breast milk, and other tissues in human monitoring studies.
The concerns do not stop at absorption. In September 2025, the European Chemicals Agency formally classified oxybenzone as an endocrine disruptor for human health, citing effects on fertility, development, and reproductive function. It is worth being fair here. The FDA still recommends that people use sunscreen, and absorption alone does not prove harm. But for families who would rather not bake questionable chemicals into their largest organ, the science offers plenty of reason to choose differently.
There is also a practical reality for those of us in the islands. Maui County now permits only mineral sunscreens, meaning products whose active ingredients are zinc oxide or titanium dioxide. Choosing a non-nano zinc formula is not only a clean choice, it is the locally compliant one.
Why We Built Lā Sunscreen Around Non-Nano Zinc Oxide
When we formulated Lā Sunscreen, we anchored its protection in non-nano zinc oxide for good reason. Zinc oxide is one of only two sunscreen active ingredients the FDA recognizes as Generally Recognized As Safe and Effective. It is the single best mineral filter for true broad spectrum coverage, shielding skin across both UVA and UVB wavelengths. It is photostable, so it does not break down in the sun the way some chemical filters do, and it begins working the moment you apply it rather than requiring a waiting period.
The "non-nano" part matters too. Non-nano simply means the zinc particles are larger than 100 nanometers. Research using advanced skin imaging has consistently shown that zinc oxide stays on the surface of healthy skin, resting in the outermost protective layer rather than penetrating into living cells. Choosing non-nano is a conservative, precautionary step that gives families added peace of mind.
This is the heart of the matter. The protection in Lā Sunscreen comes from that mineral shield. Everything else we added is there to nourish the skin underneath it.
The Nourishing Botanicals That Make Lā Sunscreen Different
A sunscreen does not have to be a chemistry experiment. We built Lā Sunscreen on a base of botanical ingredients chosen for the way they support healthy, resilient skin.
Turmeric brings curcumin, one of the most studied natural antioxidant and anti-inflammatory compounds in the world. Research published in 2025 in Frontiers in Pharmacology describes curcumin's ability to neutralize the reactive oxygen species that sun exposure generates in the skin. It is a soothing, calming complement to physical sun protection.
Frankincense, drawn from the Boswellia tree, has been valued for thousands of years and is recognized in the research literature for its anti-inflammatory and antimicrobial properties. We include it in carefully measured amounts to support calm, comfortable skin.
Jojoba oil is a standout. Its structure so closely mirrors the skin's own sebum that it absorbs beautifully and reinforces the skin barrier. Studies show it reduces water loss and helps skin stay supple and hydrated, which is exactly what skin needs after a day in the sun and wind.
Carrot seed oil and red raspberry seed oil are rich in antioxidants, carotenoids, vitamin E, and essential fatty acids. They help skin cope with the oxidative stress that sun exposure brings, and they leave skin feeling conditioned and cared for.
Coconut oil, a staple of island life, is a wonderful moisturizer with documented antimicrobial benefits. A clinical trial in pediatric patients even found virgin coconut oil improved skin hydration and barrier function better than mineral oil.
The Honest Truth About "Natural SPF"
You may have read online that carrot seed oil offers "SPF 38" or that raspberry seed oil rivals sunscreen, or that coconut oil alone can protect you in the sun. We want to be straight with you, because trust is everything. Those claims are myths.
When researchers test these oils properly, carrot seed oil measures an SPF of around 2 to 3, raspberry seed oil lands near 2 to 3, and coconut oil falls somewhere between roughly 2 and 7 depending on the method. Those numbers are nowhere close to the SPF 30 that dermatologists recommend, and they offer little defense against UVA rays. The inflated figures floating around the internet trace back to studies that either tested finished products containing zinc or measured laboratory light transmission rather than real-world protection.
This is precisely why we do not rely on oils for protection. The botanicals in Lā Sunscreen nourish and soothe. The non-nano zinc oxide protects. Each ingredient does the job it is actually good at.
Antioxidants Help Your Skin Defend Itself
Much of the damage the sun causes happens through oxidative stress, the cellular wear and tear created by reactive oxygen species. This is where antioxidants earn their place. Topical antioxidants such as vitamin C and vitamin E have been shown in dermatology research to reduce sun-induced skin damage and support the skin's natural defenses.
Antioxidants do not replace sunscreen. They cannot block ultraviolet light the way zinc oxide does. But they work alongside it, helping your skin handle whatever gets through. The antioxidant-rich oils in Lā Sunscreen are part of that supportive team.
Smart Sun Habits for the Whole Family
No single product, ours included, does the whole job. Protecting your ʻohana means building good habits into your daily rhythm. Here is what dermatologists and the Skin Cancer Foundation recommend:
Seek shade during peak sun hours, generally between 10 a.m. and 4 p.m.
Wear protective clothing, a wide brimmed hat, and UV-blocking sunglasses. Clothing with a UPF 50 rating blocks about 98 percent of ultraviolet rays.
Apply a broad spectrum, water resistant mineral sunscreen of SPF 30 or higher. Use about an ounce for your whole body, apply it 15 minutes before heading out, and reapply every two hours and after swimming or sweating.
Skip the tanning beds entirely.
These habits work. The landmark Nambour Skin Cancer Prevention Trial, published in the Journal of Clinical Oncology, found that regular sunscreen use significantly reduced both melanoma and squamous cell carcinoma over years of follow up. Consistent, daily protection is one of the simplest investments you can make in your family's long term health.
Lā Sunscreen: Protection That Nourishes
We named our sunscreen Lā, the Hawaiian word for sun, because we believe sun protection should honor both your health and the land we live on. Lā Sunscreen pairs the proven, broad spectrum protection of non-nano zinc oxide with a hand selected blend of turmeric, frankincense, jojoba oil, carrot seed oil, red raspberry seed oil, and coconut oil. It is the kind of clean, family friendly formula we use on our own keiki.
You should never have to absorb questionable chemicals just to enjoy a day outside. With Lā Sunscreen, you get real protection, nourishing botanicals, and the peace of mind that comes from knowing exactly what you are putting on your skin.
Protect your ʻohana the natural way. Explore Lā Sunscreen and the rest of the Mālama ʻOhana collection today.
This article is for educational purposes and is not medical advice. Talk with your physician or dermatologist about the sun protection plan that is right for your family. Always follow product label directions and reapply as directed.