Sunscreen Ranker journal
The sunscreen
journal.
Daily, evidence-led notes on SPF, UV filters, and sun protection — every claim sourced, no cap.
- Application You're Probably Using a Quarter of the Sunscreen You Need The uncomfortable truth behind why your SPF "isn't working." Read it →
- Global Why Your Korean Sunscreen Feels Like Water and Your American One Feels Like Paste It's not the brands; it's the filters they're legally allowed to use. Read it →
- Seasonal Skiing This Winter? Snow Is a UV Mirror Why slope days fry your face even when it's freezing. Read it →
- UV science UVA vs UVB, Explained Like You're Scrolling at 2AM The single most useful thing to understand about sun damage, in 60 seconds. Read it →
- Seasonal No, You Don't Get a Sunscreen Break Just Because It's January Winter sun is sneakier than summer sun, and here's the receipts. Read it →
- Filter chemistry 2026 Is the Year the US Finally Gets a New Sunscreen Filter Bemotrizinol is coming, and here's why skincare nerds are losing it. Read it →
- Trends Your 2026 Skin Resolution: The One Habit Dermatologists Beg You to Keep New year, same sun: daily SPF is the highest-ROI resolution you'll make. Read it →
- UV science The Spots Everyone Misses: Ears, Scalp, Lips, and Tops of the Feet The places you forget to cover — ear tops, the part in your hair, your lips, the backs of your hands — are exactly where skin cancers like to start. Read it →
- UV science Sun Damage Adds Up: How a Lifetime of UV Becomes Spots and Precancers The five-minute walks and sunny commutes you forgot about are quietly compounding into the spots and precancers that show up after 40. Read it →
- UV science Does Sunscreen Expire? When to Toss Last Summer's Bottle FDA rules mean your bottle should hold its SPF for three years — but a summer in a hot car can quietly cut that short. Read it →
- Seasonal Winter Sun Protection: Your Skin Is Still Aging Under the Clouds The burning rays back off in winter, but the aging-and-cancer rays barely budge — here's why you keep wearing sunscreen. Read it →
- UV science What UPF Really Means on Clothing (and When Fabric Beats SPF) A UPF 50 shirt blocks 98% of UV all day without a single reapplication — here's how that label actually works. Read it →
- Seasonal When the UV Index Is High, Reapply: Why SPF Wears Off Every Two Hours The UV index tells you how strong the sun is - but reapplication is the step most people get wrong, and it's why your SPF fades by midday. Read it →
- UV science Does Sunscreen Block Vitamin D? Balancing Sun Safety and Vitamin D The 'but I need sun for vitamin D' objection to daily sunscreen, settled with the AAD's actual position. Read it →
- Kids & family Cancer Council Kids Sunscreen Recalled: When 'Separation' Means Lost SPF Even a sunscreen from a cancer charity got recalled in 2025 - and the reason is a defect any parent can spot before slathering it on a kid. Read it →
- Global Australia's 'SunscreenGate': One Base Formula, 21 Products, Multiple Brands When dozens of sunscreen brands quietly share one factory formula, a single failure cascades into many - 2025's Australian recalls are a wake-up call about white-label SPF. Read it →
- Trends K-Beauty's 2025 Export Boom: Sunscreen Helps Korea Hit a $11.4B Record The K-beauty wave on your TikTok feed is now a measurable economic story - and sunscreen is one of the products carrying it. Read it →
- Filter chemistry Dermatologists React: Why the AAD Backs the FDA's Bemotrizinol Proposal When dermatologists - not marketers - cheer a new ingredient, it's worth paying attention. Here's why the AAD wants bemotrizinol on US shelves. Read it →
- Filter chemistry How the 2020 CARES Act Finally Unclogged US Sunscreen Approvals The reason no new filter appeared for decades wasn't just science - it was a broken approval mechanism, and a wonky 2020 law finally fixed it. Read it →
- Filter chemistry What Is Bemotrizinol (Parsol Shield / Tinosorb S)? The Filter Explained Bemotrizinol has quietly protected European skin for two decades under names like Tinosorb S - here's why chemists love it and how it differs from avobenzone. Read it →
- Filter chemistry The FDA's New Sunscreen Filter Was Evaluated as Safe for Babies 6 Months and Up A next-generation UV filter used abroad for years is headed to US shelves - and unlike most chemical filters, it was specifically evaluated for babies 6 months and older. Read it →
- Filter chemistry Could the FDA's Bemotrizinol Proposal Be a Win for Skin Cancer Prevention? Better UV filters mean better protection - here's why the US lagged Europe and Asia and what the FDA's December 2025 bemotrizinol move could change. Read it →
- Filter chemistry A 25-Year Wait: Inside the FDA's December 2025 Bemotrizinol Proposal Why has the US lagged Korea, Japan and the EU on sunscreen ingredients - and how a single 2025 FDA proposal could finally close the gap on your shelf? Read it →
- Filter chemistry Bemotrizinol's Dec 2025 Proposal Is Also a Contamination Story Modern, stable UV filters are the long-term antidote to 2025's benzene-and-overclaim recalls - and in December the US finally moved to approve one Europe and Asia have used for years. Read it →