Skincare
Science
Evidence-based skincare education from our research team, led by Dr. Sunbin Song (ex-NIH researcher, MIT PhD). From quick tips to deep-dives into active ingredients.
Retinoid Showdown: Which One is the Best for Your Skin - Retinol, Retinal or Tretinoin
Retinoids belong to the same family, but they have very different personalities. This article cuts through the confusion — examining potency and irritation p...
Retinoids Revealed: Understanding the Cellular and Molecular Changes in Your Skin
Today, we're going to show you pictures and images so that you can see — and not just read about — the fascinating molecular and cellular transformations tha...
The Power of Retinoids: Understanding Their Role in Skincare and Their Benefits
Retinoids are part of the Vitamin A family and among the most well-researched ingredients in all of skincare — proven to fight aging, clear acne, and fade hy...
Can you use Vitamin C and Retinoids together?
Vitamin C and retinoids are two of the most studied, most proven ingredients in all of skincare — and yes, you can absolutely use them together. Here's what ...
What’s the difference between Retinol and Retinaldehyde (Retinal)? And which one should you use?
Retinaldehyde is about ten times more effective than retinol — and despite its high potency, it's remarkably gentle. Here's the science behind why, and how t...
A (ridiculously) deep guide to how retinoids work (and why we think Retinaldehyde is the best retinoid for your skin)
Retinoids are the most extensively studied anti-aging ingredients in skincare history — but with so many options (retinol, retinal, tretinoin), knowing which...