N°1: The Chemistry of SPF

September 23, 2022

Being a beauty insider is easier than it sounds. Navigating new ingredient studies, clinical trials, and product drops can become overwhelming...especially when you’re trying to find a source of truth.
In the spirit on sharing, we curated the greatest hits from our deep-dive research on SPF. These thoughtful pieces are helping us approach sun care with confidence—we hope they’ll help you, too.

1. What does the SPF acronym actually mean? Where do those numbers come from?

This deep dive explains how SPF ratings are created, and what they mean in terms of tangible sun protection. Plus, learn how lab UV conditions stack up against real-life UV conditions.
Cosmetic chemist Michelle Wong debunks it all on her platform, Lab Muffin Beauty Science (complete with graphs!).

2. Is “safe” tanning possible? Does the “perfect” sunscreen exist?

Even with a plethora of new products on the market, there are still unanswered questions around how to effectively protect oneself from UV rays. However, we know this to be true: product testing protocols can produce variable results for SPF ratings. So, how can consumers practice ‘safe sun’?
Media darling Charlotte Palermino gives us some tough love in an (uncomplicated) Instagram carousel.

3. What do scientists think we should expect from our skincare?

In order to evaluate a product’s efficacy, consumers needs a clear baseline—an understanding of what is physically possible. Cosmetic chemist Stephen Ko serves a gentle reminder to manage your expectations when evaluating beauty products, and introduces the concept of ‘science-washing’.
Read Kind of Stephen to learn how we can shop a little more sensibly.

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