How to Clean Makeup Brushes in a Brush Kit | 7-Step Routine

Cleaning a brush kit requires submerging only the bristles in lukewarm water with gentle cleanser, swirling to lather, rinsing until clear, and laying flat to dry — never wet the ferrule or handle.

Dirty brushes are the fastest way to break out, smear your foundation, and shorten the life of your favorite kit. One wrong tap of the bristles on last week’s concealer sends old oils and bacteria right back onto your skin. The fix is a seven-minute washing routine that protects both your face and your brush fibers — and requires exactly zero special equipment. Here is the method that dermatologists and makeup artists agree on, plus the mistakes that ruin a brush in one wash.

Why Cleaning Frequency Depends On Brush Type

Not every brush needs a deep clean on the same schedule. The American Academy of Dermatology recommends washing all makeup brushes every 7 to 10 days, but the type of product you pick up changes how fast gunk builds up.

• Liquid and cream foundation or concealer brushes: deep clean once per week. Liquids trap more oil and bacteria than powders do.
• Powder brushes — eyeshadow, blush, bronzer — can go two weeks between washes since they touch less moisture and skin oil.
• Surface clean after each use: spray a quick-dry brush cleanser onto a paper towel, swirl the bristles, and you buy yourself a few more days before the full wash.

The one-evening-a-week habit is what professional makeup artists recommend. A single night set aside for all your kit’s brushes keeps the routine from slipping.

How To Clean Makeup Brushes In A Brush Kit Step By Step

The American Academy of Dermatology’s official procedure works for any brush material — synthetic, natural, cream, or powder. Follow these seven steps exactly, and your brushes will outlast the ones that get tossed after six months.

Step 1: Wet Only The Bristle Tips

Run the tips of the brush under lukewarm water. The metal ferrule and the handle must stay dry. Wetting the ferrule dissolves the glue that holds the bristles in place, and a wooden handle can swell or crack. Only the bristle portion — roughly the bottom half — should touch the stream.

Step 2: Prepare The Cleaning Solution

Fill a small bowl with lukewarm water and add one tablespoon of gentle shampoo, clarifying shampoo, or baby shampoo. Plain bar soap tends to dry out bristles. Specialized brush cleaners like Cinema Secrets Makeup Brush Cleaner or e.l.f. Cosmetics Makeup Brush Cleaner Shampoo work well too. For a DIY route, a drop of Dawn dish soap or Dr. Bronner’s Castille soap is fine.

Step 3: Swirl And Massage

Swirl each brush tip in the solution, then massage the bristles gently against your palm or a silicone brush cleaning mat. Focus on the tips where old foundation and powder collect. Do not scrub hard or push the bristles sideways — aggressive rubbing causes fiber fallout.

Step 4: Rinse Under Running Water

Hold the bristles tip-down under lukewarm water until the water runs clear. If you see soapy residue or makeup color still bleeding, you need another round of shampooing and rinsing.

Step 5: Repeat If Needed

For heavy buildup — think a foundation brush that has gone three weeks without a wash — repeat steps 2 through 4. The water must run completely clear before you move on. Residual detergent leaves a film that makes the brush apply patchy.

Step 6: Squeeze Moisture With A Paper Towel

Gently squeeze the bristles with a clean, dry paper towel. Lint-free paper towels or a microfiber cloth are best. Avoid standard hand towels, which leave fibers caught between the bristles. Never wring or twist the brush head — that breaks the glue bond.

Step 7: Reshape And Lay Flat To Dry

Reshape the bristles to their original form while they are damp. Lay the brushes flat on a clean towel with the tips hanging off the edge of the counter. This lets air circulate around the bristles and keeps water from draining into the ferrule. Drying upright in a cup or jar is the most common mistake that loosens brush glue and ruins a kit.

If you are shopping for a new set, our tested product roundup covers the best brush kits for makeup that hold up to repeated washing without shedding.

What Cleanser Should You Use On Brush Kit Fibers?

The cleanser matters more than most people think. Harsh soaps strip the natural oils from natural-hair brushes and can dry out synthetic fibers over time. Stick to these verified options depending on what you have on hand:

• Baby shampoo or sulfate-free shampoo — safe for all brush types, leaves no residue.
• Dawn dish soap — cuts through heavy grease on foundation brushes but must be rinsed thoroughly.
• Dr. Bronner’s liquid Castille soap — a good natural option that works on both synthetic and natural bristles.
• BK Beauty Solid Brush Soap — a purpose-made bar designed for deep cleaning without damage.

Avoid using plain hand soap or body wash, which can leave a film that makes the brush feel stiff when dry.

How To Sanitize Brush Kit Handles Between Deep Washes

The handles collect just as much bacteria as the bristles, especially if you set the brush down on countertops or inside makeup bags. Wipe the handles with Lucas-cide RTU spray applied to a paper towel, or use 99% isopropyl alcohol for a fast disinfectant between full washes. Do not soak the handles — alcohol or spray that runs into the ferrule can weaken the glue over time.

For makeup artists or anyone sharing brushes, a full disinfectant soak is worth doing monthly. Products like Dante Disposable Brush Cleaner require the bristles to sit in the solution for 10 minutes to fully disinfect. Use a glass or paper cup for the soak — some liquid cleaners can melt plastic containers.

Does The Type Of Brush Kit Material Change The Cleaning Method?

The same seven-step process applies whether your brush kit uses synthetic fibers, natural hair, or a blend. The main difference is how each material handles water temperature and cleanser choice.

Natural-hair brushes are more delicate and prone to drying out if over-washed. Stick to the 7–10 day window, and condition them occasionally with a drop of brush oil or gentle conditioner if they start feeling stiff.

The One Rule That Makes A Brush Kit Last Years

Never let water touch the ferrule. That single habit prevents the most common failure mode for any brush kit — bristles falling out in clumps or the brush head separating from the handle. The glue that bonds the bristles to the ferrule is water-soluble, and once it softens, there is no fixing it. Keep the ferrule dry during washing, and dry the brushes flat with the tips hanging off the counter so moisture flows away from the glue joint rather than into it.