If you have been using the same makeup brushes for weeks without washing them, you are essentially painting your face with a cocktail of old product, oil, dead skin cells, and bacteria. Learning how to clean and sanitize your makeup brushes properly is one of the simplest ways to protect your skin and get better makeup application at the same time.
Our team spent weeks researching dermatologist recommendations, professional makeup artist techniques, and real user experiences from beauty communities to put together this guide. We wanted to answer every question, from the basic "how often should I wash my brushes" to the more nuanced "does dish soap actually disinfect."
Whether you wear makeup daily or just on special occasions, this step-by-step guide will walk you through everything you need to know about cleaning, sanitizing, drying, and maintaining your brushes in 2026. We will also cover common mistakes that ruin brushes, brush-type-specific care, and signs it is time to toss a brush for good.
Why You Need to Clean Your Makeup Brushes?
Dirty makeup brushes are a breeding ground for bacteria, yeast, and mold. Every time you swipe a brush across your face, it picks up sebum, dead skin cells, and whatever bacteria is living on your skin. That buildup gets transferred right back the next time you use the brush.
The American Academy of Dermatology reports that unwashed brushes can lead to acne breakouts, fungal infections, and even staph infections in severe cases. One study found that used makeup brushes can harbor E. coli and Staphylococcus aureus, both of which can cause serious skin problems.
Beyond the health risks, dirty brushes simply do not perform well. Product buildup makes bristles stiff and patchy, which means your foundation goes on streaky and your eyeshadow looks muddy. Clean brushes pick up pigment better, blend more smoothly, and give you that professional finish.
Many users in beauty forums like Reddit's r/MakeupAddiction express frustration about not knowing whether their brushes are actually clean or just looking clean. The truth is, a brush can look spotless and still be packed with invisible bacteria. That is why understanding the difference between cleaning and sanitizing matters so much.
Cleaning vs Sanitizing: What Is the Difference?
Cleaning removes visible dirt, makeup residue, oils, and debris from your brush bristles. This is what happens when you wash your brushes with soap and water until the water runs clear. Cleaning makes your brushes look and feel fresh.
Sanitizing goes a step further by killing bacteria, viruses, and fungi that linger on the bristles. This requires either a dedicated antibacterial brush cleaner, 70 percent isopropyl alcohol spray, or a wash with a product specifically formulated with antimicrobial ingredients.
You need both. Cleaning without sanitizing leaves bacteria behind, while sanitizing without cleaning means you are killing germs on top of caked-on product. A proper routine does a deep clean first, followed by sanitizing for true hygiene.
How to Clean and Sanitize Makeup Brushes: Step-by-Step Guide
Follow these steps for a thorough deep clean that removes buildup and kills bacteria without damaging your brushes. This method works for both natural and synthetic bristles.
Step 1: Gather your supplies. You will need lukewarm water, a gentle cleanser (baby shampoo, a dedicated brush shampoo, or a mild liquid castile soap), a clean towel, and optionally a textured cleaning mat or silicone glove. For sanitizing, have 70 percent isopropyl alcohol in a spray bottle ready.
Step 2: Wet the bristles only. Hold the brush with the bristles pointing downward under a gentle stream of lukewarm water. Keep the water away from the ferrule, which is the metal band that connects the bristles to the handle. Water that seeps into the ferrule can dissolve the glue holding the bristles together, causing shedding and loose ferrules.
Step 3: Apply cleanser and swirl. Place a small drop of your chosen cleanser in the palm of your hand or on a textured cleaning mat. Gently swirl the damp brush in circular motions. You will see the makeup residue release into the soap. For heavily soiled brushes, you may need to rinse and repeat this step two or three times.
Step 4: Rinse thoroughly. Hold the brush bristles-down again and rinse under lukewarm water until the water runs completely clear. Any soap left in the bristles will dry stiff and irritate your skin on the next use.
Step 5: Sanitize the bristles. After the deep clean, lightly mist the bristles with 70 percent isopropyl alcohol. This concentration is important because it contains enough water to penetrate bacterial cell walls. Higher percentages evaporate too quickly to be effective. Let the alcohol sit for about 30 seconds.
Step 6: Squeeze out excess water. Gently pinch the bristles from the base to the tips using a clean towel. Never wring or twist the bristles, as this damages the fibers and destroys the brush shape.
Step 7: Reshape and dry. Reshape the bristles back to their original form with your fingers. Lay the brushes flat on a clean towel to dry, ideally overnight. Do not stand them upright in a cup to dry, because water will run down into the ferrule and loosen the glue.
Step 8: Sanitize the handles. Do not forget the handles. Wipe them down with an alcohol-soaked cotton pad to remove transferred bacteria and product residue. This step is especially important if you share brushes or use them on multiple people.
Cleaning Different Brush Types: Frequency and Technique
Not all brushes need the same care schedule. How often you clean depends on what products the brush touches and how frequently you use it.
Foundation and concealer brushes (used with liquid and cream products): These brushes trap the most bacteria because wet environments breed microbes faster. Wash them every 3 to 4 days if you use them daily. Cream and liquid products also leave heavier residue, so plan on repeating the swirling step an extra time to get them fully clean.
Powder, blush, and bronzer brushes: Dry products do not breed bacteria as quickly, so you can get away with washing these every 1 to 2 weeks. Run them across a textured cleaning mat for a deeper clean, because dense powder brushes hold onto pigment deep in the bristles.
Eyeshadow and detail brushes: The skin around your eyes is sensitive and prone to irritation and infection. Wash eyeshadow brushes at least once a week, and sanitize them between color changes with a quick-dry brush cleaner spray. This prevents muddy colors and protects the delicate eye area.
Beauty sponges: Sponges are even more prone to bacteria buildup than brushes because they are dense and porous. Wash your sponge after every use with a dedicated sponge cleanser or gentle soap. Replace it entirely every 3 months.
Quick Sanitizing Between Uses
For days when you do not have time for a full deep clean, a quick sanitizing routine keeps your brushes safe between washes. Keep a bottle of 70 percent alcohol spray or a commercial brush sanitizing spray on your vanity.
Mist the bristles lightly after each use and let them air dry for about 60 seconds. This kills surface bacteria and prevents cross-contamination between products. For eyeshadow brushes, wiping them on a clean microfiber cloth between colors removes most of the pigment transfer.
This is not a replacement for weekly deep cleaning. Think of it like using hand sanitizer between proper hand washes. It helps, but it does not remove all the buildup.
Common Mistakes That Ruin Your Brushes
One of the biggest complaints in beauty forums is brushes losing their shape or feeling stiff after washing. Many of these problems come from a few avoidable mistakes.
Using water that is too hot. Hot water strips natural oils from bristles, especially natural hair brushes, and can warp synthetic fibers. Stick to lukewarm water that feels comfortable on your wrist.
Soaking the entire brush. Submerging a brush past the ferrule dissolves the adhesive that holds everything together. Always keep water on the bristles only, and never leave brushes soaking in a cup of water.
Using harsh detergents. Dish soaps and household cleaners are formulated to cut through grease on dishes, not protect delicate brush fibers. They strip bristles, cause shedding, and leave residue that can irritate your skin. If you want an affordable option, baby shampoo is gentler and pH-balanced.
Drying brushes upright. Standing wet brushes upright in a holder causes water to flow into the ferrule. This is one of the most common reasons brushes start shedding after a few months. Always lay brushes flat or at a slight downward angle to dry.
Skipping the reshape step. If you do not reshape your bristles right after washing, they dry in whatever position they fall. A dense powder brush can dry splayed and flat, and it may never recover its original fullness. Take five seconds to press the bristles back into shape before drying.
Proper Drying and Storage Tips
How you dry your brushes matters just as much as how you wash them. After reshaping the bristles, lay each brush flat on a clean, dry towel. Roll the towel slightly at the edges so the brush handles rest on the roll and the bristles hang just off the edge. This allows air to circulate around the bristles while keeping them slightly elevated.
Let brushes dry completely before using them again, which usually takes 6 to 12 hours depending on brush density and humidity. Using a damp brush will streak your makeup and introduce moisture back into your products.
Store clean brushes in a dry, cool place away from direct sunlight and humidity. Avoid keeping them in the bathroom if possible, because shower steam creates a damp environment that encourages bacterial growth between uses. A dedicated brush roll or organizer on your vanity keeps bristles protected and dust-free.
Signs Your Brushes Need Replacing
Even with perfect care, makeup brushes do not last forever. Here are the clear signs it is time to replace a brush rather than just clean it again.
If bristles are shedding noticeably every time you use the brush, the adhesive has degraded beyond repair. A brush that has lost its shape permanently, even after careful reshaping and drying, will never apply product the way it used to. Persistent stains or a lingering odor even after deep cleaning signal deep bacterial contamination that washing cannot fix. If a brush starts irritating your skin or causing breakouts despite regular cleaning, it is time to toss it.
As a general rule, replace your most-used brushes every 1 to 2 years. Brushes used less frequently can last 3 to 5 years with proper care.
Natural and DIY Cleaning Solutions
You do not need expensive specialty products to clean your brushes effectively. Several affordable household options work well for regular cleaning.
Baby shampoo is one of the most popular choices among both everyday users and professional makeup artists. It is gentle, pH-balanced, and effectively breaks down makeup oils without stripping bristles. A large bottle costs just a few dollars and lasts for months.
Liquid castile soap, diluted with water, is another excellent option. It is made from natural plant oils and contains no synthetic detergents. A few drops in the palm of your hand cleans most brushes thoroughly.
A mixture of one part white vinegar to two parts water can serve as a natural sanitizing rinse. Vinegar has mild antimicrobial properties and helps dissolve stubborn product buildup. However, it does not kill bacteria as effectively as 70 percent isopropyl alcohol, so use it as a supplement rather than a replacement for proper sanitizing.
Frequently Asked Questions
Does Dawn dish soap disinfect makeup brushes?
Dawn dish soap cleans makeup brushes effectively by removing oils and product residue, but it does not disinfect them. Standard dish soap is a surfactant, not an antimicrobial agent. It removes visible dirt but does not kill bacteria. To disinfect, you need to follow up with 70 percent isopropyl alcohol or a dedicated antibacterial brush sanitizer. Additionally, dish soap can strip natural bristles and cause them to feel stiff, so a gentler option like baby shampoo is recommended for regular use.
How to clean makeup brushes for first time use?
New makeup brushes should be washed before their first use to remove manufacturing residues, dust, and loose fibers. Wet the bristles under lukewarm water, apply a small amount of gentle baby shampoo, swirl in your palm until the water runs clear, rinse thoroughly, reshape the bristles, and lay flat to dry. A single wash is usually sufficient for new brushes. Avoid using alcohol on brand new natural hair brushes, as it can dry out the fibers before they have been conditioned by use.
How do you deep clean your makeup brushes?
To deep clean makeup brushes, wet the bristles under lukewarm water pointing downward. Apply a gentle cleanser like baby shampoo to a textured cleaning mat or your palm. Swirl the brush in circular motions, rinse, and repeat until the water runs completely clear. For heavy buildup, let the brush sit with cleanser for 2 to 3 minutes before rinsing. Follow with a light spray of 70 percent isopropyl alcohol to sanitize. Squeeze out excess water with a towel, reshape the bristles, and lay flat to dry overnight.
What do professional makeup artists use to clean their brushes?
Professional makeup artists typically use a two-step system: a daily brush cleaner spray for quick sanitizing between clients and a deep-cleaning brush shampoo for end-of-day washing. Popular professional products include Cinema Secrets Brush Cleaner, Parian Spirit, and 70 percent isopropyl alcohol for disinfection. Many pros also use hospital-grade disinfectants like Lucas-cide for brushes used on multiple people. The key difference between professional and home cleaning is frequency and thoroughness, not necessarily the products themselves.
Conclusion
Knowing how to clean and sanitize makeup brushes properly is a simple habit that pays off in clearer skin, better makeup application, and longer-lasting tools. Clean your liquid and cream brushes every few days, powder brushes weekly, and always sanitize with 70 percent isopropyl alcohol after washing. Lay brushes flat to dry, reshape the bristles every time, and replace brushes that shed or lose their shape.
Make brush cleaning a regular part of your routine in 2026, and your skin will thank you for it.
Bernice is the Co-Founder and Style & Beauty Editor at Powers of 10. She specializes in testing and reviewing skincare treatments, cosmetics, and fashion apparel. From evaluating the active ingredients in anti-aging serums to assessing the fit and fabric quality of men's and women's everyday clothing, Bernice provides readers with honest, practical lifestyle recommendations.