If you've ever fallen down a skincare rabbit hole, you've probably heard people rave about European and Asian sunscreens. For years, one of the reasons these products earned such a loyal following was their access to newer UV filters that weren't approved in the United States.
That's finally starting to change.
Bemotrizinol (also known as BEMT and sold internationally as Tinosorb S®) was recently approved by the FDA and is now entering the U.S. sunscreen market under the trade name Parsol® Shield. Its approval makes it the first new sunscreen active ingredient approved in the U.S. in decades.
Skincare professionals and sunscreen enthusiasts have been talking about this ingredient for years, so let’s take a closer look.
What Is Bemotrizinol?
Bemotrizinol is a chemical sunscreen active that helps protect the skin from both UVA and UVB rays.
UVB rays are the primary cause of sunburn, while UVA rays penetrate deeper into the skin and contribute to signs of premature aging such as wrinkles, dark spots, and loss of elasticity.
One reason experts are excited about bemotrizinol is that it offers broad-spectrum protection across a wide range of UV wavelengths.
It also has another important advantage: it's highly photostable.
In simple terms, photostability means an ingredient remains effective even after exposure to sunlight. Some sunscreen filters gradually break down in the sun and need support from other ingredients to maintain effectiveness. Bemotrizinol is known for staying stable and continuing to provide protection throughout wear.
What Is All the Hype About?
For many sunscreen enthusiasts, the excitement isn't necessarily that bemotrizinol is revolutionary. It's that Americans finally have access to an ingredient that consumers in Europe and Asia have been using for more than 20 years.
Furthermore, overall, consumer reviews outside the U.S. are overwhelmingly positive. While some formulations may have minor complaints, those issues aren't actually about bemotrizinol itself and are usually directed at the finished sunscreen formula. After more than two decades of global use, there are few recurring complaints specifically tied to bemotrizinol itself.
According to the FDA, bemotrizinol has a long history of safe international use and was found to have low skin absorption during its review. Its approval gives manufacturers another tool for creating effective sunscreen formulas and may lead to products with:
- Strong UVA protection
- Improved photostability
- Lightweight textures
- Less greasy finishes
- Better wear under makeup
Why Zinc Oxide Still Remains the Gold Standard
Despite the excitement surrounding bemotrizinol, zinc oxide continues to hold a unique position in sun protection.
Broad-Spectrum Protection
Zinc oxide naturally provides broad-spectrum UVA and UVB protection without needing additional UV filters. It remains one of the most comprehensive UV blockers available.
Minimal Absorption
Unlike chemical filters, zinc oxide sits primarily on the surface of the skin and is not significantly absorbed into the body. This makes it attractive to consumers seeking a mineral-based option.
Strong Safety Record
The FDA currently recognizes zinc oxide as one of the sunscreen ingredients generally recognized as safe and effective. It has generations of use behind it and is frequently recommended for sensitive skin.
Suitable for a Wide Range of Users
Zinc oxide is often recommended for:
- Sensitive skin
- Rosacea-prone skin
- Post-procedure skin
- Children's sun protection
- Consumers seeking natural mineral-only formulas
Is Bemotrizinol or Zinc Oxide Better?
Rather than choosing between bemotrizinol and zinc oxide, many consumers may find that the two work well together as part of a complete sun protection routine. For example, a lightweight sunscreen containing bemotrizinol can serve as a comfortable base layer under makeup, thanks to its transparent finish and elegant feel on the skin. Then, throughout the day, a zinc oxide sunscreen mist can make reapplication much easier without disrupting makeup. This approach allows consumers to enjoy the cosmetic benefits that many bemotrizinol formulas offer while still incorporating zinc oxide's broad-spectrum protection and long-established safety profile. Since dermatologists recommend reapplying sunscreen every two hours when exposed to the sun, an SPF facial mist is a must-have for every sun-conscious girlie.
Bemotrizinol is exciting because it offers better UVA coverage and photostability than many existing U.S. chemical filters. Still, zinc oxide remains the only natural sunscreen active that provides broad-spectrum protection while maintaining the FDA's highest level of confidence regarding safety and effectiveness. When choosing a sunscreen, be sure to consider your lifestyle and what matters most to you, because at the end of the day, the best sunscreen is the one you actually use.
Image credits: Volodymyr Maksymchuk/CanvaPro, mykolsosiukin/CanvaPro
