Great foundation doesn’t just cover—it transforms. The ONE/SIZE Foundation Collection delivers high-performance, skin-first formulas across every finish, coverage level, and skin type, so you can build the base that works for you.

Reach for Turn Up The Base Full Beat Liquid Foundation for full-coverage, waterproof, sweat-proof, and transfer-proof performance. Made with just 16 skin-loving ingredients, it blurs pores, and visibly evens skin tone, making it a great foundation for mature skin. Prefer powder? The Allure Best of Beauty Award-winning Turn Up The Base Versatile Powder Foundation offers buildable medium-to-full coverage in 33 inclusive shades, with a soft-matte, velvety finish that minimizes texture and controls shine for 12 hours. Looking for something lighter? ONE/SIZE has options for every preference and skin type.

From foundations for oily skin to liquid concealer for dark circles, every product is vegan, cruelty-free, and built to perform for all skin tones and textures.