How to Clean Your Makeup Brushes (And Why It Matters More Than You Think)

I'll admit it — I went way too long without cleaning my makeup brushes the way I should have. I'd do a quick wipe on a cloth and call it a day. Then I started breaking out in places I never broke out before, and my foundation was applying streaky and uneven. When I finally deep-cleaned my brushes I was genuinely horrified by what came out of them.

Dirty brushes are one of the most overlooked causes of skin problems in people who wear makeup regularly. Here's what's actually in there and how to fix it.

What Builds Up in Dirty Brushes

Every time you use a makeup brush, it picks up:

• Product residue (foundation, powder, eyeshadow, blush)
• Dead skin cells from your face
• Skin oils and sebum
• Bacteria — including acne-causing bacteria that multiply in the warmth and moisture of a brush bristle
• Environmental dust and pollution

When you use that brush again, you're pressing all of that directly back into your pores. Breakouts along the cheeks, jawline, and forehead that seem to appear without obvious cause are frequently brush-related. And beyond skin health, dirty brushes apply product unevenly and affect your makeup application quality significantly.

How Often to Clean Your Brushes

• Foundation and concealer brushes: Weekly minimum — these tools have the most product and skin contact
• Eye brushes: Every 1–2 weeks for eyeshadow brushes; weekly for liner and wet product brushes
• Powder, blush, and bronzer brushes: Every 2 weeks
• Sponges and beauty blenders: After every single use — sponges are the most bacteria-prone applicator because they stay damp

If you're breaking out and can't figure out why, try cleaning every brush weekly for a month. You might be surprised by the difference.

How to Actually Clean Them

For a deep clean (weekly or biweekly):

1. Wet the bristles with lukewarm water — keep the ferrule (the metal band) dry to avoid loosening the glue that holds bristles in place
2. Apply a small amount of brush cleanser or gentle sulfate-free shampoo to your palm or a brush cleaning mat
3. Swirl the brush gently in circular motions until the water runs clear
4. Reshape the bristles and lay flat on a clean towel to dry — never stand brushes upright while wet, as water runs into the ferrule and loosens bristles over time
5. Let dry completely (usually overnight) before using

For a quick clean between uses (spot cleaning): Use a spray brush cleanser or 70% isopropyl alcohol for natural fiber brushes to quickly sanitize and remove excess product. Spray onto a paper towel and swirl the brush until the towel shows clean. These dry in minutes.

Cleaning Your Beauty Blender

Sponges need more attention than brushes because they hold more moisture and product deep inside. Wet the sponge, apply a small amount of cleanser, and squeeze repeatedly under running water until water runs clear. Some people microwave their beauty blenders in soapy water for 30 seconds — it works, but let it cool completely before touching.

Replace your beauty blender every 3 months regardless of cleaning habits — the foam degrades and bacteria can build up in tears and crevices that cleaning can't reach.

Clean Brushes, Clean Skin

This is one of those habits that sounds small but makes a genuinely noticeable difference in skin clarity and makeup application quality. Put it on your weekly routine the same way you'd schedule washing your pillowcase or cleaning your face.

Find clean brush cleansers and makeup tools in our Beauty Tools & Devices collection.