FDA Moves on Bemotrizinol — First New US Sunscreen Filter in 26 Years

If the FDA finalises its proposed order, US sunscreens will gain access to a UV filter the rest of the developed world has been using for two decades. That is a meaningful upgrade — and a reason to look more carefully at the SPF already in your routine.

What happened

According to coverage from the Environmental Working Group, the FDA has formally proposed adding bemotrizinol — sold by DSM-Firmenich under the brand name Parsol Shield — to the US over-the-counter sunscreen monograph. It would be the first new active sunscreen ingredient cleared for the US market in over two decades.

The filter is not new globally. It has been in European, Japanese, Korean and Australian sunscreens for more than 20 years. What is new, after a quarter-century, is movement on the gap between what dermatologists abroad recommend and what is available on a US drugstore shelf.

Why this is a real upgrade

Bemotrizinol is a photo-stable, large-molecule organic filter. Translation: it does not break down quickly in the sun, and it sits on the skin's surface rather than being absorbed in significant amounts. The FDA's review notes very low skin absorption and a low rate of irritation.

It also covers both UVB and UVA strongly — the long-wave UVA wavelengths most associated with photoageing and melanoma risk. Current US chemical filters skew UVB-heavy and noticeably weaker on long-wave UVA, which is part of why US sunscreens have lagged behind Asian and European formulas in both cosmetic elegance and UVA protection.

What it does not mean

This is a proposed order, not a final rule. Products containing bemotrizinol cannot legally be sold as OTC sunscreens in the US until the FDA finalises the order — and reformulated sunscreens would reach shelves only after that. A final order may come in mid-to-late 2026.

None of this changes the SPF you have today. Modern mineral filters and current chemical filters still work. The question is whether you should be waiting before re-buying. For most people, no — protection used consistently beats protection improved in theory.

What to do for your routine right now

Three things actually move the needle on photoprotection, in order: how much sunscreen you apply, how often you reapply, and how broad-spectrum the filter set is. Filter choice matters, but less than the first two.

If the headlines have you second-guessing your sunscreen, the useful move is to audit what is in it — not panic-shop. US sunscreen labels are confusing, especially on UVA protection (mandatory and clearly graded in the EU; only loosely indicated in the US as "broad spectrum").

If bemotrizinol clears, it opens the door for newer filters approved abroad that have been stuck in US regulatory limbo for over a decade. That is the bigger story under this announcement — not a single ingredient, but a possible thaw. Until then, the best SPF is still the one you wear every day.