Welcome to the first edition of Skin Signal, Your SPF|YI — where I share dermatologist-backed skincare tips, product picks I actually use, and insider hacks you won’t just stumble across on Google.

If you’ve ever wondered why your skin seems to shift gears in September, you’re not alone. Let’s dig in.

Thinking about trying red light therapy but not sure where to start? With so many devices on the market, it’s easy to feel overwhelmed—or unsure if you’re getting your money’s worth.

Board-certified dermatologist Dr. Walter has tested and researched some of the most popular devices available and created a free, comprehensive guide to help you choose the right one for your goals.