Does vitamin C serum go bad? Independent lab tests found top serums already degraded 30% below label claims at Day 1
Vitamin C serum goes bad when L-Ascorbic Acid oxidizes on contact with air and light, turning the...
The Dose
Skincare research, recos, and facts. Apply liberally.
TOPICS:
Retinol
Vitamin C
Design
Weekend Edit
How To
Skin Care
Sustainability
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Exponent Beauty Retinol Serum Before and After Images
Retinol before and after results typically show smoother skin texture, reduced fine lines, and sm...
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Exponent Beauty Vitamin C Serum Before and After Images
Vitamin C serum before and after results show brighter, more even skin tone within 4-6 weeks of d...
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How to Build a Clinical Anti-Aging Skincare Routine: An Evidence-Based Guide
Sooner or later, we all get them. The fine lines from smiling, the creases from concentrating, an...
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Clinical Skincare Standards Explained: How to Know if Your Products Actually Work
Walk into any prestige beauty department or browse online skincare retailers, and you'll encounte...
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The Science of Skincare Degradation: Why Anti-Aging Products Lose up to 50% Potency Before You Finish the Bottle
Skincare products don’t last forever. In fact, many active ingredients break down quickly once a ...
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A Jar’s Journey: The Beauty Supply Chain and Why Freshly Made Skincare Matters
What’s the real story behind your moisturizer? From production lines to store shelves, its journe...
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Exponent vs. Others: How Our CoQ10 Stats Stack Up Against Other CoQ10 Products
The stats don’t lie. In a battle of the antioxidants, we put our Firming Filter CoQ10 Activated S...
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Decoding Skincare Clinical Testing Claims: Balancing Clinical Precision vs Consumer Experience
Navigating the vast realm of skincare products can be daunting, with promises of transformative r...
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Active Ingredients: Concentration Matters
Do you know how much active ingredient is in your skin care products? Exponent Beauty tests many ...
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Skincare Active Ingredients + Self-Activated Face Products
Are you ready to face the facts? In a study that we conducted with a 3rd party lab on the top 25 ...
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Raising The Standard in Skin Care
When it comes to effective skincare, even the top-performing products are bound to go awry. Don’t...
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In Full View: Liz Whitman
Q&A HOW DID YOU COME UP WITH THE EXPONENT STANDARD?Over the course of my research and develo...
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Top 10 Fall Skincare Products
As the seasons change, so should your skincare routine. Check out our list of 10 expert-recommend...
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Clinical Testing: Is Your Skincare Proven or Playing?
Pseudo-science (noun)A claim presented as scientific, but which does not adhere to the scientif...
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Top 4 Vitamin C Products
Meet the A-Team. Our favorite Vitamin C products at percentages that perform. But, consider your...
