These aren’t just bestsellers—they’re beauty icons. ONE/SIZE has earned its place with a lineup of high-performance, cult-favorite formulas that continue to sell out for a reason.

Leading the charge is On ’Til Dawn Mattifying Waterproof Setting Spray, the #1 makeup product in the United States*. This viral, 16-hour waterproof setting spray keeps makeup transfer-proof, sweat-proof, and smudge-resistant all day, with 100% of study participants confirming their makeup stayed in place.

Behind every great look is a strong base. Secure the Blur Makeup Magnet Primer has become a go-to for pore-blurring, long-wear results, while Ultimate Blurring Setting Powder delivers a mattified, blurred finish with up to 24-hour shine control. For oily skin, Oil Sucker Extreme Mattifying Alkaline Primer helps control excess oil and instantly mattify. For sweat-prone skin, Secure the Sweat Sweat-Proof Aluminum-Free Primer helps absorb sweat and excess oil for long-lasting makeup wear and an ultra-smooth, matte finish.

These are the makeup essentials that went viral, topped the charts, and earned a permanent place in routines around the world.

*Based on United States consumer spend in the Makeup Category from Jan 1, 2025 – June 30, 2025. Source: YipitData.