The Learning Lab

Does Waxhead's zinc oxide contain nanoparticles?

By Kari Kenner June 24, 2021 |

Does Waxhead's zinc oxide contain nanoparticles? No, we do not use nanoparticles in our products. We only use non-nano zinc oxide. Please note an important difference between “micronized” and “micron-sized.” Micronized means a process that grinds larger zinc oxide particles into smaller ones, producing a significant number of nanoparticles. Waxhead...

What is Waxhead’s PA Rating?

By Kari Kenner January 05, 2021 |

What is Waxhead’s PA Rating? You may have noticed PA++++ on sunscreen labels lately and wondered why you don't see any plus signs on Waxhead labels. I'll get to that reason, but first let me explain PA Ratings in general. PA Ratings Came from Asia The PA Rating System...

How does zinc oxide sunscreen work?

By Kari Kenner December 06, 2020 |

On February 2019, the FDA recommend the GRASE (generally recognized as safe and effective) status on only two active ingredients for use in sunscreen: zinc oxide and titanium dioxide. The FDA also requested further research on the remaining active ingredients including oxybenzone and octinoxate) before they can be listed as...

Is zinc oxide good for lips?

By Kari Kenner December 02, 2020 |

Yes, zinc oxide is good for lips when it is used in an SPF lip balm. Lips are thin, exposed, and easy to forget, making them among the most overlooked areas for sun damage. A zinc oxide lip balm helps protect the lips from UVA and UVB rays by sitting...

Does zinc oxide sunscreen expire?

By Kari Kenner November 14, 2020 |

Yes, zinc oxide sunscreen can expire, but not in the way most people think. The zinc oxide mineral itself is highly stable. It does not break down in sunlight the way many chemical sunscreen filters can. But a finished sunscreen product is more than zinc oxide. It also contains oils,...

Is Waxhead Sunscreen broad spectrum?

By Kari Kenner August 27, 2020 |

Yes, absolutely. And unlike many other brands, our products protect against both UVA and UVB rays equally well, because zinc oxide, our sole active ingredient, covers all parts of the UV spectrum equally. There’s no other known ingredient that does, including titanium dioxide, which misses fully half of the UVA...