Skin School
What Is a Barrier Recovery Serum? (And Does Your Skin Actually Need One?)
A barrier recovery serum is a targeted treatment designed to calm, hydrate, and restore a compromised skin barrier — faster than a moisturizer alone can. Here's how they work, who they're for, and ...
The Best Nighttime Moisturizer for Sensitive Skin — What to Look for and Why It Matters
Not all nighttime moisturizers are built the same — especially for sensitive skin. Here's exactly what to look for, what to avoid, and why the right formula can make a visible difference overnight.
How to Choose a Retinol If You Have Sensitive Skin (Without the Irritation)
Retinol is one of the most studied ingredients in skincare — but it's also one of the most misunderstood for sensitive skin. Here's how to get the benefits without the irritation.
Squalane vs. Hyaluronic Acid: What's the Difference and Which One Does Your Skin Need?
Squalane and hyaluronic acid are two of the most popular skincare ingredients right now — but they do completely different things. Here's which one your skin actually needs, and whether you should ...
What Makes a Moisturizer Truly Clean? A No-Fluff Breakdown
"Clean" beauty is everywhere — but the term has no legal definition and means different things to different brands. Here's what it actually should mean, what ingredients to avoid, and how to read a...
Dream Cream vs. Barrier Balm: How to Know Which One Your Skin Actually Needs
Both the Dream Cream Nighttime Moisturizer and the Radical Repair® Barrier Balm support skin health overnight — but they do different jobs. Here's how to tell which one is right for your skin right...
Signs Your Current Cleanser Is Damaging Your Skin Barrier (And What to Switch To)
The tight, squeaky-clean feeling after washing your face isn't a sign of clean skin — it's often a sign of barrier damage. Here are seven signs your cleanser is the problem, and what to look for in...
Barrier Serum vs. Hydrating Serum: What’s the Difference?
Learn how barrier serums differ from hydrating serums, what Hydrolyzed Hyaluronic Acid does, and which formula is right for stressed or dehydrated skin.
Can Oily, Blemish-Prone Skin Have a Damaged Moisture Barrier?
Oily skin can still feel dehydrated, tight, and reactive when its moisture barrier is compromised. Learn how to recognize the signs and build a gentle, blemish-conscious routine that restores hydra...
Prebiotics, Postbiotics and Fermented Skincare: What Do They Actually Do?
What do prebiotics, postbiotics and fermented ingredients do for skin? Explore the microbiome and its connection to hydration and barrier health.
7 Signs Your Skin Barrier is Damaged and What to Do Next
Learn the common signs of a damaged skin barrier and how to build a gentle routine that supports calm, hydrated, resilient skin.
How to Use a Gua Sha: Step-by-Step Technique for Sculpting, Depuffing, and Lifting
Quick Answer
Hold the gua sha tool at roughly a 15–30° angle against the skin and glide it outward and upward using light to medium pressure. Start at the neck and work upward, moving from the...