Sunscreen is one of the most important daily products we use — yet most people have no idea what’s actually in it. If you’ve ever been confused about labels like “natural,” “mineral-based,” or “clean,” you’re not alone. Many brands use clever marketing that can make even seasoned low-tox shoppers second-guess their choices.
As a mom, wellness advocate, and someone passionate about clean living, I’ve done the research for you. In this blog, I’ll break down what truly makes a sunscreen low-tox, what ingredients to avoid, and what to look for — plus some of my personal favorite safer brands.
What Makes a Sunscreen Low-Tox?
When it comes to low-tox sunscreen, it’s all about the ingredients.
There are two types of sunscreen:
1. Chemical Sunscreens
Absorb UV rays with synthetic ingredients (like oxybenzone, octinoxate, and avobenzone).
2. Mineral Sunscreens
Use natural minerals like zinc oxide and titanium dioxide to sit on top of your skin and physically block the sun’s rays.
Mineral sunscreens are considered the safer option by the FDA when used topically and not in spray form.
“Natural” Doesn’t Mean Safe Sunscreen
Sadly, marketing terms like natural, organic, or eco-safe aren’t regulated. That means a brand can use these phrases even if they contain hormone-disrupting or environmentally harmful ingredients. Always read the ingredient label — or use a third-party verification tool like EWG’s Skin Deep or Sunscreen Guide.These tools rate ingredients and products from 1 (safest) to 10 (most hazardous). Need guidance on using the app? Check out a quick walk-thru of how to use the EG app.
Ingredients to Avoid in Sunscreen
If you're looking to protect your skin without disrupting your hormones or harming the environment, watch for these common chemical ingredients:
- Oxybenzone: Linked to hormone disruption, allergic reactions, and detected in urine, blood, and breast milk weeks after use.
- Octinoxate: Disrupts thyroid hormones and is harmful to marine life.
- Homosalate: Breaks down into harmful by-products that can accumulate in the body.
- Octocrylene: Can degrade into benzophenone, a potential carcinogen.
- Octisalate & Avobenzone: Possible endocrine disruptors and common allergens.
- Phthalates: Hidden under the term “fragrance,” these disrupt hormones and are linked to developmental, metabolic, and fertility issues.
- Parabens: Found in many personal care products, these preservatives mimic estrogen and have been found in breast tissue.
The best way to avoid phthalates in sunscreen is to avoid fragranced products. Learn more about phthalates.
What Sunscreen Ingredients Are Safe?
Look for these as the active ingredients in your sunscreen:
- Non-nano zinc oxide
- Non-nano titanium dioxide
These minerals offer broad-spectrum protection and don’t absorb into the bloodstream like chemical filters. Always check that the product is broad-spectrum (protects against UVA and UVB) and water-resistant if needed.
Should You Use Spray Sunscreen?
Spray sunscreens may be convenient, but even with mineral formulas, they’re best avoided.
When zinc oxide or titanium dioxide is turned into an aerosol, the fine particles can be inhaled, posing a risk to your lungs. If you do use a spray, apply it outside, don’t inhale, and never spray directly on your face — spray into your hand and apply manually.
Additional Tips for Staying Safe in the Sun
Even with low-tox sunscreen, it's crucial to take extra precautions when spending time outdoors. Here are some additional tips to protect your skin:
- Purchase a mineral-based, non-toxic sunscreen with non-nano zinc oxide or non-nano titanium dioxide: These ingredients are safer for both your health and the environment.
- Seek shade between 10 a.m. and 2 p.m.: The sun is most intense during these hours and can cause the most damage to your skin from UVA and UVB rays. Consider using a sun umbrella or staying under cover.
- Wear protective clothing: Choose long-sleeved shirts, wide-brimmed hats, and long pants to shield your body from the sun. These simple additions provide an extra layer of protection for your skin.
Low-Tox Sunscreens I Recommend
After testing dozens of products on myself and my family, here are a few mineral sunscreens I trust:
Badger SPF Reef Safe Sunscreen SPF 40
Reef-safe and NSF Certified.
Two Peas Organic Mineral Sunscreen
Great ingredients! Made with coconut oil, jojoba oil, and shea butter.
Babo Botanicals Sensitive Baby Mineral Stick
EWG Verified and NSF Certified.
Suntegrity Sunscreen
Non-nano zinc oxide and reef safe.
Suntegrity 5-in-1 Mineral Sunscreen for Face
Tinted moisturizer and sunscreen in 1. My fave!
Final Thoughts About Sun Safety and Low-Tox Sunscreen
Your sunscreen should protect you, not burden your body with hormone disruptors, allergens, and chemicals that linger for days. Choosing better ingredients doesn’t have to be overwhelming. Educate yourself and explore cleaner options that work for you and your family.
Join My Clean Living Movement
Want more simple swaps and trusted product picks? Follow me on Instagram @featherandnestllc for low-tox tips, reviews, and lifestyle inspiration — or head to the Feather & Nest shop for curated, low-tox finds you can trust.
Have a favorite low-tox sunscreen not listed? DM me — I’d love to hear what’s working for you!
Disclaimer: I am not a medical professional. The information shared in my posts is based on thorough research, scientific studies, and a passion for providing accurate and helpful insights to support healthier living. My goal is to empower you to make informed, toxin-free choices by understanding the ingredients in everyday products. Please consult with a healthcare provider before making any significant changes to your health or wellness routine. Be sure to read my other blogs for more tips, and feel free to share the knowledge you gain. As the owner of a cleaning and organizing business, I also include helpful organizing tips along the way!
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