The Learning Lab

7 Reasons Sunscreen Stings Eyes. And How to Avoid It.

By Kari Kenner August 20, 2025 |

Picture this: you're getting ready for a beautiful day at the park with your family. You dutifully apply sunscreen to everyone's faces, and within minutes, your toddler is rubbing their eyes and crying. Sound familiar? You're not alone if you've ever dealt with sunscreen eye irritation during family outdoor adventures....

The 5 Most-Asked Sunscreen Questions

By Kari Kenner July 07, 2025 |

We rounded up the top 5 sunscreen questions people ask Alexa, Siri, and Google—and answered them with clarity, science, and zero marketing fluff. TL;DR Zinc oxide is the safest active sunscreen ingredient for babies, sensitive skin, and marine ecosystems. Tinted zinc oxide formulas minimize white cast without using harmful nanoparticles....

How Much Sunscreen to Apply on Face vs Body?

By Kari Kenner June 10, 2025 |

How much sunscreen is enough?What’s the right amount for your face?Is more always better—or is there such a thing as too much? Let’s face it: most people apply sunscreen wrong. They use too little, overlook key areas, or trust chemical formulas that break down quickly, leaving them vulnerable. In this...

SPF 30 vs SPF 50: Which Protection Level Do You Need?

By Kari Kenner June 09, 2025 |

Standing in the sunscreen aisle wondering if SPF 50 is worth the extra cost over SPF 30? Most people assume higher SPF means dramatically better protection, but the science shows otherwise. SPF 50 vs SPF 30: The Real Protection Difference The numbers are misleading. The actual protection difference between SPF...

The Real Reason You're Still Getting Sun Spots

By Kari Kenner May 27, 2025 |

The Problem: You're Using Sunscreen But Still Getting Dark Spots If you're faithfully applying sunscreen but still seeing dark spots or melasma creep across your cheeks, forehead, or upper lip, you're not alone—and you're not imagining it. Sunspots, hyperpigmentation, and melasma are notoriously persistent, especially for people with medium to...

How to Train for a 5K Without Wrecking Your Skin

By Kari Kenner May 12, 2025 |

(A Guide for Runners Who Care About Health From Head to Toe) Training for your first 5K is a big step—congrats! Whether aiming for a fun run, a fundraising race, or a personal milestone, starting a running habit is a great way to build endurance, boost mood, and get outside...