Collagen Loss Starts at 30. Here's What the Science Says to Do About It.
Collagen loss doesn't announce itself with a grand exit. It's a slow, quiet departure — the kind...
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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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...
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Skin Care for Pores: Large Pores, Clogged Pores + More
Although pores have a crucial role in releasing sebum and moisturizing skin, they become a concer...
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How Vitamin C Serum Boosts Sun Protection
Vitamin C serum boosts sun protection by up to 4x when applied under SPF. It works by neutralizin...
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Ultimate Guide to Layering: When to Apply Vitamin C, Retinol & More
In skincare, the more you know, the more you realize you don't know. You've gathered all your ess...
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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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Exponent Super Human - Sahar Rohani
Convictions from the Super Humans we admire the most. Sahar Rohani, born and raised in Lagun...
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How to Start Retinol Without Irritation (Our Clinical Study Found 97% of Users Had None at Week 1)
97% of people in our clinical study reported zero irritation at week 1. Not reduced irritation. ...
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All About Skin Hydration + Tips for Dehydrated Skin
Hydrated, plump skin is the goal. Unfortunately there are many factors that can lower the water l...
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HydroGlow: The 45-Second Oxygen Facial at Home (And Why We Launched It)
At Exponent, we don't launch products often. HydroGlow is our first new innovation in over two...
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5 Trending B-Corps to Know in 2026
Every year, a new wave of brands earns a spot on our radar, and this year's B-Corp picks might be...
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Featured on Allure: How Exponent and Tomorrow Lab Created the First True Fresh Skin Care System
There's a dirty little secret the skin care industry doesn't want you to know: those pricey activ...
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Sensitive Skin Solutions: How to Use Powerful Actives Without Irritation
If you have sensitive skin, you have probably heard some version of the same advice: "Skip the st...
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CoQ10 Pairings: Antioxidants vs Retinol - Which Strategy Wins for Your Skin?
Here's the truth about CoQ10: it's enhanced by the company it keeps. And right now, there ar...
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Self-Activated vs. Pre-Mixed Vitamin C Serums: Complete Guide to Freshness & Potency
If you've ever noticed your vitamin C serum turning yellow or brown over time, you're witnessing ...
