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Family health > Sun protection > Ingredient safety
Your Sunscreen Isn't Sitting ON Your Skin for 8 Hours – It's Soaking INTO Your Bloodstream
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⚫ 3 min read
Rosalind Shaw, Clean Beauty Researcher & Ingredient Safety Advocate, S&S
Last updated: April 5, 2025
2445 reviews
For over a decade, I religiously applied sunscreen daily, terrified of sun damage and skin cancer, which runs in my family.
Until I discovered something the FDA has known for years but the public is only now hearing about.
The Petroleum Problem Nobody Talks About
In 2019 and 2020, two Journal of the American Medical Association studies changed everything we thought we knew about sunscreen.
Researchers asked volunteers to apply conventional sunscreen normally – once in the morning, reapplied throughout the day. Then they tested their blood.
Within hours, petroleum-derived UV filters like avobenzone and oxybenzone were found in their bloodstream at concentrations more than 500 times the FDA's safety threshold.
Even after stopping use, these chemicals were still detected weeks later.
Studies Have Found 7 Common Sunscreen Chemicals In:
- Bloodstream
- Liver & kidneys
- Endocrine system (hormones)
- Urine samples
- Breastmilk
- Amniotic fluid
What's Really Happening When You Apply Chemical Sunscreen
Most people think all sunscreen works the same way. But there's a dirty secret manufacturers don't tell you.
Those chemical UV filters seeping into your skin? This is what they're DESIGNED to do.
Chemical sunscreens work by absorbing UV radiation inside your skin, triggering a chemical reaction inside your body that converts UV rays into heat.It's like swallowing a tiny space heater instead of wearing a coat.
After I learned this horrifying truth, I never wanted to put conventional sunscreen on my skin again. But I felt trapped with an impossible choice.
Either Poison My Body Or Risk Skin Cancer?
Once I knew how sunscreens really worked, I began avoiding daylight completely.
I declined social activities.
And when I did go out, I'd wear 3 layers in summer, covered in sweat and feeling miserable.
I thought avoiding the sun was my only option – until I discovered a health researcher who'd faced the same dilemma and actually did something about it.
A Discovery On Top Of Mt Kilimanjaro That Changed Everything
Health researcher Max Medroso didn't start as a sunscreen expert. After struggling with chronic health conditions, he reversed them by replacing processed foods with ancestral ingredients, dropping 40 pounds.
Years later, standing at 19,000 feet atop Mt. Kilimanjaro – one of Earth's highest UV exposures – he had a shocking realization.
As he applied sunscreen, he was allowing chemicals he'd eliminated from his diet back into his system.
Descending the mountain, he wondered: If ancestral ingredients transformed my internal health, what would they do for my skin?
That question led him to create a breakthrough that meant wearing sunscreen didn't have to mean poisoning your body.
A Sunscreen Breakthrough
Unlike chemical sunscreens that absorb into your bloodstream, Sky & Sol uses zinc oxide that sits on your skin's surface, reflecting UV rays like tiny mirrors.
No penetration. No absorption. No bloodstream circulation.
Zinc oxide is the only FDA-approved ingredient that protects against the full spectrum of UVA and UVB on its own.
But there was one problem: the white residue.
I had experienced this first hand.
Every time I applied mineral sunscreen, I became so chalky my boyfriend joked I looked like a ghost. So I'd go back to chemical sunscreens despite knowing what they were doing to my body.
Solving The White Residue Problem
After 18 months of research, Sky & Sol discovered what other brands missed.
The white residue wasn't a zinc problem. It was a formulation problem.
Most mineral sunscreens suspend zinc in water-based formulas or cheap silicones, making zinc particles clump together.
Sky & Sol suspends zinc oxide in natural fat-based carriers like tallow and jojoba oil – similar to our skin's natural oils. The zinc disperses naturally.
They call this their Anti-White Cast Technology™. And it means no clumping. No white residue. Just invisible mineral protection.
SHOP SKY AND SOL SUNSCREENIngredients So Clean You Can Pronounce Them
Sky & Sol's SPF 30 delivers broad-spectrum UVA/UVB protection using 25% non-nano zinc oxide.
Every ingredient meets their SkyCertified™ Edible-Grade Standard:
- Non-Nano 25% Zinc Oxide
- Water
- Grass-Fed/Grass-Finished Tallow
- Jojoba Oil
- Jojoba Ester (wax)
- Lecithin
- Beeswax
- Kaith Bark
- Babassu Starch
- Radish Root Ferment Filtrate
- Astaxanthin
That’s it.
No chemical UV filters. No fragrances. No parabens. No harsh preservatives. No seed oils.
And it leaves your skin protected AND moisturized – like combining sunscreen and moisturizer into one step.
A Sunscreen That Feels Like A Moisturizer
Most sunscreens leave your skin dry or greasy. Sky & Sol's SPF 30 Face and Body Sunscreen leaves it protected AND moisturized – like combining your sunscreen and daily moisturizer into one step.
And unlike most companies, Sky & Sol even share a certificate of analysis for every ingredient. You don’t often see this kind of transparency.
- No chemical UV filters
- No added fragrances.
- No parabens.
- No harsh preservatives.
- No seed oils.
The Results Speak For Themselves
What Customers Are Saying
Doctor Approved Suncare For Health Conscious People
"Sky & Sol has been a great resource for my friends, family and patients! The ingredients and application are smooth and non-greasy, providing phenomenal UVA and UVB protection. I highly recommend Sky & Sol for daily use and outdoor activities!"
- Dr. Ronak Patel, ND and Ashley Cohen, PA-C
A Limited-Time Opportunity to Protect Your Skin
Sky & Sol is offering up to 15% off plus free shipping exclusively for readers of this article. Many people are stocking up before this special price ends.
SHOP SKY AND SOL SUNSCREENTheir 180-Day Guarantee Gave Me The Confidence To Order
Sky & Sol offers a 180-Day, 100% satisfaction guarantee.
If it doesn't live up to expectations within 180 days, simply return it for a full refund – even if used!
SPF Tested
Dermatologist-Approved
SkyCertified™
US GMP Purity Tested
Remember, Every Application of Sunscreen Is a Vote For Your Health
Now you know the truth.
Conventional sunscreen leaks petroleum chemicals into your bloodstream. But you don't have to choose between sun protection and safety. And mineral sunscreen doesn't mean white residue.
Sky & Sol solved it all.
Click below to secure your supply while the 15% Holiday Sale lasts.
MEDICAL & HEALTH DISCLOSURE: This information is not intended as medical advice and is not a substitute for professional medical expertise or treatment. Consult your health care provider for medical concerns. Never disregard professional medical advice based on something read here.
*These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure or prevent any disease. Results may vary.
SOURCES: 1. Matta MK, Zusterzeel R, Pilli NR, et al. Effect of Sunscreen Application Under Maximal Use Conditions on Plasma Concentration of Sunscreen Active Ingredients: A Randomized Clinical Trial. JAMA. 2019;321(21):2082-2091. 2. Matta MK, Florian J, Zusterzeel R, et al. Effect of Sunscreen Application on Plasma Concentration of Sunscreen Active Ingredients: A Randomized Clinical Trial. JAMA. 2020;323(3):256-267.
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