Welcome to another issue of Just About the Glow.

The newsletter for women simplifying skincare, buying more selectively, and finding their way back to a steady, healthy glow.

If this helps, forward it to someone overwhelmed by skincare noise.

In today's issue:

1. The FDA just approved a sunscreen filter Korea's used since 2000

2. What this actually changes about how your sunscreen performs

3. How to read the ingredient list once US formulas start showing up

If you've ever ordered a Korean sunscreen because the formula felt different, lighter, less chalky, easier to wear under makeup, you weren't imagining it.

A lot of that difference came down to one filter the US never approved. That just changed.

For years, the conversation around Korean sunscreen has had a slightly apologetic undertone. Import it, order it through a third-party site, hope customs doesn't hold it up, because the US version "isn't the same."

That gap was never about quality control or how a brand formulates. It came down to which UV filters the FDA had cleared for use in this country. Bemotrizinol, sold internationally as Tinosorb S, has been a standard filter in Korean, European, and Australian sunscreens since 2000. It sat in US regulatory review for more than two decades.

On June 9, 2026, the FDA approved it. This is the first new sunscreen active ingredient cleared here in over 25 years.

This isn't a trend story. It's a formulation story, and that distinction is exactly why it matters to someone who actually wears sunscreen every day rather than just reads about it.

Bemotrizinol is broad-spectrum, covering both UVA and UVB, and it's notably photostable. That means it holds up under sun exposure without breaking down the way some older organic filters do, which is part of why reapplication felt less necessary with the Korean formulas you may have already tried, and part of why the finish tended to sit better under makeup instead of pilling or leaving a film.

What changed isn't the ingredient itself. It's that US brands can now legally formulate with it. Companies can start incorporating bemotrizinol into products beginning August 9, 2026, and the first US-made sunscreens containing it could reach shelves as early as that same month.

So nothing happens to your current bottle overnight. What it means is that the formulation gap between "the Korean sunscreen I import" and "the sunscreen sold at my local store" just started closing, and it's worth understanding before you change anything in your routine.

If your current sunscreen performs well, stay with it. A new filter being approved doesn't make your existing formula worse. If you tolerate it, it protects you, and it doesn't leave a cast or pill under your other products, there's no reason to switch just because something new exists.

If you've been importing specifically for this filter, watch the ingredient list, not the marketing. Once US-formulated sunscreens start launching later this year, look for bemotrizinol by name, or its other listed names: bis-ethylhexyloxyphenol methoxyphenyl triazine, BEMT, or Tinosorb S. Brands will likely highlight it as a selling point, but the ingredient list is what confirms it.

Expect a slow rollout, not a flood. Regulatory approval doesn't mean every sunscreen brand reformulates overnight. Some will move quickly. Most will wait, test, and launch in stages. Treat early "now with the new FDA-approved filter" claims with the same selectivity you'd apply to any other launch: read the full ingredient list, not just the headline filter.

If you wear sunscreen daily under makeup, this is the detail to watch for. Photostability and finish are where bemotrizinol tends to show up most noticeably in daily wear. If a reformulated US sunscreen lists it, that's a reasonable signal the texture may behave more like the Korean version you preferred, though formulation still varies brand to brand, so judge the finished product, not just the one ingredient.

Don't pause sun protection while you wait. Keep using the SPF you already trust. Treat any bemotrizinol launch as something to evaluate when it actually arrives, not a reason to go without protection in the meantime.

The real story here isn't one ingredient clearing review. It's that the gap between what Korean skincare offers and what's legally available in the US just narrowed, slowly, through exactly this kind of regulatory shift rather than a marketing trend.

That's worth paying attention to. Not because it changes your routine today, but because it's a sign of where US sunscreen formulation is heading, and it gives you one more concrete detail to look for the next time you're standing in front of a shelf deciding what's actually worth it.

🌸 Before you go, explore what's worth it in k‑beauty right now

YesStyle - My go-to for trending K-beauty and glow-boosting skincare finds

GlassLogic GPT - AI skincare planner that helps you choose the right ingredients, avoid conflicts, and follow a smarter daily routine.

Emma Lee
Founder of Just About the Glow
Your glow guide to K-beauty, skincare, and what's worth it

Disclaimer: The content provided is for informational and educational purposes only and is not intended as medical or dermatological advice. Skincare recommendations, ingredient spotlights, and product reviews reflect personal opinions and general guidance, and may not be suitable for all skin types or concerns. Always perform a patch test before introducing new products and consult a licensed dermatologist or qualified healthcare professional for personalized advice. Individual results may vary based on skin type, sensitivities, lifestyle, and consistency of use. Any links to featured products or brands may include affiliate relationships, and readers are encouraged to conduct their own research before making purchasing decisions.