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Water rinses out watercolor and solvent removes most oil paint, yet a brush can still hold pigment deep near the ferrule. That residue is what stiffens bristles, splays points and eventually ruins good brushes. Brush soaps for painters are designed to remove it while conditioning the hair, and that combination is why they outperform dish soap for long-term care.
Below are five soaps that differ in format, size and formula: a classic solid cake, a liquid for big brushes, an olive oil bar, an acrylic-focused craft soap and a plant-based option. Each suits a slightly different painter.
Quick answer: The Masters Brush Cleaner and Preserver is the best all-round brush soap for painters who work in several media. Pick Speedball Pink Soap for large brushes and heavy use, or the Escoda olive oil bar if you mainly care for natural hair.
Our Top Picks at a Glance
- The Masters Brush Cleaner and Preserver (2.5 oz) — Best for all-round cleaning across oil, acrylic and watercolor
- Speedball Pink Soap Brush Cleaner and Conditioner (12 oz) — Best for large brushes and heavy studio use
- Escoda Olive Oil Brush Soap (100 g bar) — Best for natural hair brushes and gentle care
- Jo Sonja Brush Soap and Conditioner (8 oz) — Best for decorative and acrylic craft painters
- Tusc and Pine Artists’ Brush Soap (2 oz) — Best for plant-based, gently scented soap
| Product | Best For | Key Spec | Key Strength | Price Tier |
|---|---|---|---|---|
| The Masters Brush Cleaner and Preserver (2.5 oz) | All-round cleaning across oil, acrylic and watercolor | 2.5 oz solid cake; non-toxic | Cleans and conditions in one step | $ |
| Speedball Pink Soap Brush Cleaner and Conditioner (12 oz) | Large brushes and heavy studio use | 12 oz liquid | No solvents, alcohol or phosphates | $$ |
| Escoda Olive Oil Brush Soap (100 g bar) | Natural hair brushes and gentle care | 100 g bar; olive oil formula | Doubles as hand soap | $ |
| Jo Sonja Brush Soap and Conditioner (8 oz) | Decorative and acrylic craft painters | 8 oz | Removes acrylic, oil and lacquer | $ |
| Tusc and Pine Artists’ Brush Soap (2 oz) | Plant-based, gently scented soap | 2 oz; plant-based; made in North Carolina | Rich lather from vegetable oils | $ |
How We Chose
Our picks rely on Amazon listing details and specifications checked in October 2026, how well each soap’s formula and format fit artist brush care, and how widely each product is reviewed by Amazon buyers. We excluded cleaners made for house paint brushes and rollers, which often use stronger chemistry than fine-art brushes need.
We weighed these points:
- Media the listing says it removes (oil, acrylic, watercolor)
- Safety for natural hair such as sable and squirrel
- Format: solid cake, bar or liquid
- Conditioning claims and residue
- Size and cost per wash
- Ingredients worth noting (solvent-free, plant-based)
Do You Really Need Brush Soap?
Ordinary dish soap removes paint, and many painters use it. The difference shows over months. Detergents strip natural oils from hair and can leave brushes dry and frizzy; artist brush soaps add conditioning agents and are formulated to rinse cleanly from both natural and synthetic fibers.
If you paint with inexpensive synthetic brushes, dish soap may be good enough. If you own sable rounds, squirrel mops or quality hog bristle, a dedicated brush soap is cheap insurance.
Best Brush Soaps for Painters Reviewed
1. The Masters Brush Cleaner and Preserver (2.5 oz) — Best for all-round cleaning across oil, acrylic and watercolor
The Masters is the brush soap most painters meet first, and its staying power comes from a simple promise: one step that cleans and conditions. General’s lists it as removing oils, acrylics, watercolors, stains and varnishes, and as safe for sable, bristle and synthetic brushes.
It comes as a firm cake in a tub. You wet the brush, swirl it on the surface to build lather, work the lather toward the ferrule with your fingers and rinse. The same cake lasts a long time because you only take a thin layer each wash. The related 1 oz listing from the same maker shares the description and adds that leaving the product on a brush for several hours can help loosen old, dried paint.
Best suited for: Painters who work in several media and want a single, widely available soap for every brush they own.
Key features:
- 2.5 oz solid cleaner in a tub
- Cleans and conditions in one step
- Removes oil, acrylic, watercolor, varnish and glazes
- For sable, bristle and synthetic brushes
- Non-toxic
Pros:
- Works across all common media
- Long-lasting cake
- Gentle on natural hair
Cons and limitations:
- Tub can get messy if left wet
- Dried acrylic still needs patience
- Solid cake is slower than liquid for big brushes
Buying consideration: Let the tub dry with the lid off after use, then close it. A soggy surface wastes product and can grow residue.
2. Speedball Pink Soap Brush Cleaner and Conditioner (12 oz) — Best for large brushes and heavy studio use
Pink Soap is a liquid, which makes it faster with large flats, mops and printmaking brayers than a solid cake. Speedball lists it for oils, acrylics and watercolors, describes it as cleaner, preserver and conditioner, and notes that it contains no chlorides, phosphates, solvents or alcohol and leaves no greasy residue.
A 12-ounce bottle goes a long way, and you can pour a small amount into a dish for a session rather than contaminating the whole bottle. For painters with a lot of brushes, or teachers cleaning a classroom set, liquid is simply quicker.
Because the formula contains no solvent, it is also a reasonable choice for shared spaces and classrooms where you want to keep chemical exposure low.
Best suited for: Acrylic and oil painters with many or large brushes, classrooms and shared studios.
Key features:
- 12 oz liquid formula
- Cleans, preserves and conditions
- For oil, acrylic and watercolor
- No chlorides, phosphates, solvents or alcohol
Pros:
- Fast lather on big brushes
- Large quantity
- Leaves no greasy film
Cons and limitations:
- Easier to overuse than a cake
- Bottle is bulkier for travel
- Middle price tier
Buying consideration: Dilute a little in water for a quick soak of acrylic brushes at the end of a session, then work the hair with your fingers.
3. Escoda Olive Oil Brush Soap (100 g bar) — Best for natural hair brushes and gentle care
Escoda is a Spanish brush maker, and its soap reflects that background: an olive oil bar formulated to clean all artist brushes without drying the fibers. The listing says it suits both natural and synthetic hair and helps maintain shape and softness through regular care.
A bar has the same benefits as a cake but no tub to keep clean. It also doubles as a hand soap, which is useful after oil painting when you want something gentler than solvent on your skin.
Best suited for: Watercolorists with sable or squirrel brushes and anyone who prefers a simple, oil-based soap bar.
Key features:
- 100 g olive oil soap bar
- For natural and synthetic fibers
- Helps keep bristles conditioned
- Usable as hand soap
Pros:
- Gentle on delicate natural hair
- No tub to clean
- Compact
Cons and limitations:
- Bar softens if left in standing water
- Less suited to stripping dried acrylic
- Smaller than liquid bottles
Buying consideration: Store the bar on a draining soap dish. A bar that sits in water turns soft and wastes product.
4. Jo Sonja Brush Soap and Conditioner (8 oz) — Best for decorative and acrylic craft painters
Jo Sonja is a long-standing name in decorative and folk-art painting, where acrylics are the main medium. The listing is brief: it cleans and preserves natural or synthetic fiber brushes and removes acrylic, oil or lacquer.
The 8-ounce size suits painters who clean small acrylic brushes often, such as tole painters, crafters and people painting furniture details or ornaments. Because it targets acrylic, it is a sensible choice if most of your brushes come home coated in quick-drying paint.
Best suited for: Decorative painters, crafters and acrylic hobbyists who clean many small brushes.
Key features:
- 8 oz size
- Cleans and preserves
- For natural and synthetic fibers
- Removes acrylic, oil and lacquer
Pros:
- Acrylic-focused formula
- Generous size
- Low price tier
Cons and limitations:
- Few details given in the listing
- Less widely stocked than The Masters
- Texture and scent not specified
Buying consideration: Because the listing gives little detail, check the product photos and packaging description for format before buying, especially if you prefer solid or liquid.
5. Tusc and Pine Artists’ Brush Soap (2 oz) — Best for plant-based, gently scented soap
Tusc and Pine makes a plant-based brush soap from vegetable oils with a gentle pine fragrance. The listing says it removes acrylic, watercolor and even oil residue, conditions bristles and suits natural and synthetic brushes, and that it is made in North Carolina.
Its pitch is the alternative to harsh detergents and solvents, which can strip natural hair over time. The 2-ounce size is small, so it suits watercolor and gouache painters with a modest brush collection, or as a gift.
Best suited for: Painters who prefer a plant-based, scented soap and clean a small set of brushes.
Key features:
- 2 oz plant-based soap
- Made from vegetable oils
- Pine fragrance
- For natural and synthetic bristles
Pros:
- Rich, conditioning lather
- Pleasant scent
- Small-batch, US-made
Cons and limitations:
- Small size for heavy use
- Fragrance may not suit everyone
- Not ideal for large brushes
Buying consideration: If you are sensitive to scent, choose an unscented option such as Pink Soap or Escoda instead.
A Simple Cleaning Routine with Brush Soap
Soap works best as the last step, not the first:
- Wipe excess paint onto a rag.
- Rinse in water (watercolor, gouache, acrylic) or odorless mineral spirits (oil).
- Wet the brush and work it gently on the soap or in a small pool of liquid soap.
- Massage lather into the hair near the ferrule with your fingers; that is where residue hides.
- Rinse until the water and lather run completely clear.
- Press out water, reshape the tip and dry flat or bristles-down.
For oil brushes, a soap wash after solvent removes the oily film that solvent leaves behind. For acrylic, speed matters: clean before paint dries in the hair. If paint has already dried, soaking the head (not the handle) in soapy water or leaving a cake soap on the brush for a few hours can help loosen it.
Some painters leave a little soap in a clean, reshaped round as it dries. The dried soap holds the point like a sizing; rinse it out before the next session.
Buying Guide: How to Choose a Brush Soap
Match the soap to your medium
Most artist brush soaps handle oil, acrylic and watercolor. If you paint mostly acrylic, look for listings that specifically mention dried acrylic removal. If you paint watercolor with natural hair, prioritize gentleness and conditioning.
Painters who switch media can use one soap for everything, as long as it is listed for all of them.
Solid cake, bar or liquid
Solid cakes and bars last a long time and work well for small and medium brushes. Liquids are faster for large brushes and for cleaning many brushes at once. Bars are tidy but soften in water; cakes in tubs need to dry between uses.
For travel or plein air, a small cake or bar is easier to pack than a bottle and less likely to leak in a bag.
Natural hair safety
Sable, squirrel and goat hair are sensitive to harsh cleaners. Choose a soap that explicitly lists natural hair as safe, and avoid scrubbing hard against the cake.
Natural hair also absorbs more water, so rinse thoroughly and allow longer drying time after soaping.
Residue and conditioning
A good brush soap rinses clean. If brushes feel greasy after drying, rinse longer or try another formula. Conditioning helps keep hair supple and points sharp.
One quick test: after a brush dries, pinch the hair near the ferrule. If it feels stiff or gritty, pigment or soap is still trapped there and needs another wash.
Ingredients and scent
Solvent-free and plant-based formulas appeal to painters who want fewer chemicals in the studio. Scented soaps are pleasant for some and irritating for others; unscented options exist.
Size and value
A 2 oz cake may last a hobby watercolorist a year. A teacher with a classroom set will be happier with a 12 oz liquid. Estimate how many brushes you wash each week.
Cost per wash is usually low for every soap here, so choose on format and gentleness first and price second.
Brush Technique and Care Guides
Clean brushes keep a point, and points matter in fine work. Try our guide on painting dots with a round brush, and learn how to use a liner brush for detail work, two techniques where residue near the ferrule shows immediately.
Common Mistakes to Avoid
- Skipping the solvent or water rinse and going straight to soap
- Scrubbing natural hair brushes hard against a cake
- Leaving soap residue in the brush without rinsing
- Using harsh house-paint brush cleaners on sable
- Standing brushes in soapy water so it reaches the handle
- Letting a soap bar sit in water between uses
FAQs
Is brush soap better than dish soap?
For quality brushes, usually yes. Dish soap cleans, but brush soaps also condition the hair and are formulated for natural and synthetic fibers, which helps brushes last longer.
Can brush soap remove dried acrylic?
It can help with lightly dried acrylic, especially if you leave the soap on the brush for a while. Thick, fully cured acrylic may need a dedicated restorer and patience.
Do I still need solvent for oil brushes?
Most painters rinse oil brushes in odorless mineral spirits or a safflower oil wipe first, then wash with brush soap to remove the remaining oil and pigment.
How often should I use brush soap?
After every painting session is ideal. A quick soap wash keeps residue from building up near the ferrule.
Is The Masters brush cleaner safe for sable?
The listing states it is for use on sable, bristle and synthetic brushes. Use a gentle swirl rather than scrubbing.
Can I use brush soap to clean my hands?
Many painters do. Some, such as the Escoda olive oil soap, are explicitly described as suitable for hands.
Final Recommendation
For most painters, The Masters is the sensible default: it handles every common medium and lasts a long time. If you clean big brushes or many brushes at once, Speedball Pink Soap’s liquid format saves time.
Natural-hair watercolorists may prefer the gentle Escoda olive oil bar. Decorative and craft painters working in acrylic can look to Jo Sonja, and anyone who wants a plant-based, scented soap for a small brush set will enjoy Tusc and Pine.
