Summer brings sunshine and a reminder to use sunscreen, but many popular sunscreens may contain chemicals that pose risks to both health and the environment. Let’s look at some of the concerns surrounding these ingredients and tips for choosing safer sun protection.

Health Risks Linked to Spray-On Sunscreens

Spray-on sunscreens are convenient, but they may release tiny particles into the air, increasing the risk of inhalation. Inhaled nanoparticles, especially titanium dioxide and zinc oxide, can irritate lung tissue and have more widespread effects if they enter the bloodstream. While these ingredients are safe on the skin, they may cause damage when inhaled, potentially reaching organs and even crossing the blood-brain barrier, which can affect cells in the immune, nervous, and cardiovascular systems.

Nanoparticles: How Size Affects Safety

The smaller the particles, the greater the risk. These fine particles can reach deep into lung tissue, causing irritation and possibly leading to chronic respiratory issues. If they enter the bloodstream, they can circulate through the body, accumulating in organs and affecting cellular functions. Research suggests they could cause cellular damage, though more studies are ongoing to fully understand the implications.

Environmental Impact of Sunscreen Ingredients

When sunscreen is washed off, it flows into waterways, bringing nanoparticles with it. Marine life, particularly coral and fish, is vulnerable to these pollutants. Nano-sized particles can affect aquatic organisms’ health, disrupt ecosystems, and ultimately harm biodiversity. Choosing non-nano sunscreen options can mitigate some of these effects.

How to Choose a Safer Sunscreen

When shopping for sunscreen, prioritize products labeled “non-nano,” which have larger particles that won’t penetrate the skin or be easily inhaled. Ensure that your sunscreen offers broad-spectrum protection, covering both UVA and UVB rays. If you’re using spray sunscreens, avoid spraying in enclosed areas and keep them away from children.

Consider Alternatives to Prolonged Sun Exposure

For those planning longer sun exposure, cover up with clothing for additional protection. Broad-brimmed hats, lightweight long sleeves, and sunglasses can help minimize reliance on sunscreen alone, reducing your exposure to any potential chemical risks.

Informed sunscreen choices can make a difference. Protect yourself and the environment this summer by selecting safer options and practicing sun safety responsibly.

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