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Science-backed guides on water, skin and hair.

Afina 2026 Winter Skin Index

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The Afina 2026 Winter Skin Index ranks 56 of the largest US cities on how tough winter conditions are for skin in the shower and beyond. Each city is scored out of 100 using five factors:...

RVRamon Van Meer · Oct 26, 2026

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Everyone Says They’ll Pay More for “Made in the USA.” So We Ran an A/B Test.

When we priced a U.S.-made version of our flagship product 85% higher than our Chinese-made one, 25,650 customers had the chance to...

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