Lactic Acid
Reviewed: Shani Darden Retinol Reform, the Retinol Serum That Celebrities Swear By
The product behind Hollywood's most flawless complexions.
How to Use Vitamin C Serum and an AHA or BHA in Your Skincare Routine for Bright, Even-Toned Skin
The right way to layer these glow-getters.
AHA vs BHA Exfoliants: What’s the Difference (and How to Choose the Right One for Your Skin)
Everything you need to know about acids.
How to Use Niacinamide and an AHA or BHA in Your Skincare Routine for Smooth, Clear, Even-Toned Skin
Before you layer these ingredients, read this!
Editor’s Picks: 31 of the Best AHA and BHA Exfoliating Pads for Bright, Clear Skin
Swipe away dullness, pigmentation, breakouts and more.
Can Exfoliating with Salicylic or Glycolic Acid Thin Your Skin? The Answer Might Surprise You
What AHAs and BHAs are really doing to your skin.
Reviewed: Shani Darden Texture Reform, the Retinol Serum for Sensitive Skin and Beginners
Meet Retinol Reform's gentler sister.
Is Your Skin Purging or Breaking Out? How to Tell the Difference (and What to Do If You Can’t)
It can be a good sign or a bad sign.
Member Exclusive: AHA vs BHA Benefits (Cheat Sheet)
The differences between the most common acids in skincare.
Editor’s Picks: 10 of the Best Products from the Cult Luxury Skincare Line Omorovicza
What's really worth it from this mineral-rich range.
How to Do My Fall Skincare Routine
What I'm using to fade pigmentation, prevent breakouts and ward off aging.
Reviewed: The Best (and Worst) Skincare Products from The Ordinary [UPDATED]
What's worth buying from the brand everyone's talking about.
The Right Way to Layer an AHA or BHA and Retinol in Your Skincare Routine
Are you using these active ingredients correctly?
Editor's Picks: The 10 Best Skincare Products at Sephora Right Now, from Serum to Sunscreen
Everything you need to upgrade your routine.
From Biologique Recherche to Pixi: 7 of the Best New Skincare Products
Pigmentation treatment, exfoliating toner and more.
8 of the Worst Skincare Mistakes (and How to Avoid Them)
Follow these tips for a healthy complexion.
Why You Need to Exfoliate Your Skin Every Day
As long you're gentle, it's one of the best ways to improve your complexion.
From Urban Decay to Kevin Murphy: 11 of the Best New Beauty Products
Eyeshadow, dry shampoo and more.
How to Get Your Skin Ready for Fall
Your game plan for repairing summer skin and preparing for cooler temps.
How the "Do Nothing" Regimen Can Help Your Acne
The best pimple protocol might be—surprise!—to do nothing at all.
Do Your Skincare Products Have to Be from the Same Brand?
Maybe—and here are two lines that I'm mightily impressed by.