Best sunscreen ingredients and which ones to avoid
I still remember the first time I had a reaction to a sunscreen. I was hiking in dry weather, thought I’d done everything right — high SPF, water-resistant, a brand that seemed reputable. But within an hour, my skin felt tight and irritated, and by the next morning, I was dealing with a stubborn rash that took days to calm. That moment changed the way I looked at sunscreens forever.
For safe and effective sun protection, choose mineral-based sunscreens with zinc oxide or titanium dioxide, which offer broad-spectrum coverage, and avoid harmful ingredients like oxybenzone, octinoxate, and retinyl palmitate due to their links to skin irritation, hormone disruption, and environmental damage.
Since then, I’ve spent years immersed in formulation work — not just making sunscreen, but studying how different filters affect the skin, how regulations vary around the world, and why some ingredients continue to show up in products despite growing concerns from dermatologists, regulators, and everyday users.
If you’ve ever felt overwhelmed reading a sunscreen label — or wondered why your skin reacts to some formulas but not others — you’re not alone. And if you’re creating your own skincare line or guiding others in choosing safer options, knowing what’s inside that tube is more important than ever.