Brush 36 vs Brush 13: Which Foundation Brush Gives the Most Airbrushed Finish?

If you’ve ever stared at your foundation brush and wondered why your base doesn’t look as seamless as the ones you see on social media, the answer often comes down to the brush itself. Two brushes that frequently come up in that conversation are Brush 36 and Brush 13. Both are designed for liquid foundation, but they have different shapes, densities, and finishes.

In this comparison, we break down the key differences between Brush 36 and Brush 13—so you can decide which one will give you that coveted airbrushed finish without the guesswork.

Shape and Bristle Density: The Core Difference

Brush 36 is a classic flat top foundation brush. Its dense, tightly packed bristles create a smooth, buffing motion that presses foundation into the skin for a polished, pore-blurring effect. The flat top allows you to work in circular motions, which is ideal for building coverage evenly across large areas like the cheeks and forehead.

Brush 13, on the other hand, features a slightly tapered, domed shape. This design gives you a bit more precision around the nose, eyes, and jawline, while still offering enough surface area for quick, full-face application. The dome shape also allows for a softer, more diffused application, which can be great if you prefer a lighter, skin-like finish.

When it comes to density, Brush 36 is noticeably firmer. That firmness helps push product into the skin, making it a strong choice for full-coverage liquid foundations. Brush 13 is a touch softer and more flexible, which means it’s less likely to leave streaks but may require a few extra passes for the same level of coverage.

• Brush 36: flat top, dense, firm—best for buffing and full coverage.
• Brush 13: domed, slightly softer—better for precision and lighter layers.

Finish and Application Technique

The finish you get from each brush depends largely on how you use it. With Brush 36, use a stippling or buffing motion—dab the brush into foundation, then buff in small circles. This technique pushes pigment into pores and blurs imperfections, delivering that airbrushed, photo-ready look. It’s especially effective with medium-to-full coverage liquid foundations.

Brush 13 shines when you want a more natural, second-skin finish. Use it with a lighter hand and sweep the foundation outward from the center of your face. The domed shape lets you blend product into the skin without disturbing the layers below, which is perfect for buildable coverage or for days when you want your skin to breathe.

Both brushes work well with liquid foundation, but if you’re after that flawless, blurred effect, Brush 36 is the more direct route. If you prefer a finish that looks like your skin but better, Brush 13 offers a softer, more forgiving application.

• For an airbrushed finish, use Brush 36 with circular buffing motions.
• For a natural finish, use Brush 13 with sweeping strokes and light pressure.

Which One Should You Choose?

Your choice between Brush 36 and Brush 13 really comes down to your preferred coverage and finish. If you love full-coverage foundations and want to minimize the look of pores and texture, Brush 36 is your best bet. It’s also a great all-around brush if you only want to own one foundation brush.

If you prefer lighter, buildable coverage or often wear tinted moisturizers and skin tints, Brush 13 gives you more control and a more natural result. It’s also easier to blend around tricky areas like the nose and under the eyes, making it a versatile addition to your kit.

For those who want the best of both worlds, consider adding both to your collection—use Brush 36 for days when you want a full, flawless base, and Brush 13 for a quick, everyday look. Both are high-quality tools that will elevate your foundation application, so you really can’t go wrong.

• Choose Brush 36 for full coverage and an airbrushed finish.
• Choose Brush 13 for natural, buildable coverage and precision blending.

Ultimately, both Brush 36 and Brush 13 are excellent foundation brushes, but they serve slightly different purposes. Brush 36 is the go-to for that flawless, airbrushed finish, while Brush 13 offers a softer, more natural look. Consider your typical foundation routine and coverage preferences, and you’ll know exactly which one deserves a spot in your makeup bag.