How to Tell If a Skincare Product Is Actually Working
Moisturizers and sunscreens work right away, but active ingredients need weeks to months of steady use before you can fairly judge them.
What Niacinamide Does, in Plain Terms
Niacinamide is a gentle form of vitamin B3 that may support the skin barrier and even tone modestly; it helps, but it is not a fix on its own.
How to Patch Test a New Skincare Product Properly
A quick patch test on your arm can save you a week of irritated skin from a product that doesn’t agree with your face.
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