Over 200 Billionaire SKUs went live on 5 September, every shade number running across a gel, a lacquer and a dip powder. The duo is $6, the matching powder is...

Trend chaser, restock planner, maximalist, minimalist, brand loyalist, or full-library collector — your nail-shopping cart is a personality test. A shareable summer-restock quiz, every type matched to a real in-stock...