Does Caffeine Eye Cream Work? What It Can (and Can’t) Do for Puffy Eyes
Yes, for the right kind of puffiness. Caffeine is small, about 194 Daltons, so unlike many skinca...
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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Under Eye Bags and Dark Circles: Why Your Eye Cream Isn’t Working
Most eye creams disappoint for three reasons. The under-eye area usually has several concerns wit...
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Matrixyl 3000 and Peptides in Eye Cream: Do They Work?
Peptides can work as signals that tell skin cells to support firmness and smoothness, and some ha...
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Types of Dark Circles, and Where Hesperidin Fits
Hesperidin is a flavonoid from citrus peel, chosen in skincare mainly for blue and purple dark ci...
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Skincare Bioavailability: What Actually Reaches Your Skin (and Why It Matters More Than the Label)
Bioavailability in skincare means how much of an active ingredient reaches the part of the skin w...
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The 500 Dalton Rule, Explained: Why Most Skincare Molecules Can’t Get Into Your Skin
The 500 Dalton rule is a dermatology rule of thumb, described in a 2000 paper by Bos and Meinardi...
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Introducing the Needle-Free Lifting Eye Cream
Nine under-eye concerns. Six bioavailable actives. One pharma-developed delivery technology engin...
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The Future of Skincare Is Better Diagnosis
Walk into any beauty retailer and you'll find thousands of products promising to solve every conc...
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Bakuchiol vs Retinol for Sensitive Skin
The bakuchiol vs retinol question is really the wrong question for sensitive skin. The right ques...
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Can’t Use Retinol? How to Smooth Wrinkles with Eczema, Rosacea, or a Baby on the Way
The internet treats retinol like a miracle in a jar — the one active everyone swears smoothed the...
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What's Wrecking Your Skin Barrier (And How to Actually Fix It)
What Is the Skin Barrier, Exactly? Your skin barrier—technically called the stratum cor...
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Genetic dark circles vs tiredness
You wake up, glance in the mirror, and there they are again — shadows under your eyes. So you bla...
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Skin Longevity vs Quick Correction
Quick-correction skincare chases fast, visible change — often with aggressive actives that c...
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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...
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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...
