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Updated July 2022
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BestReviews spends thousands of hours researching, analyzing, and testing products to recommend the best picks for most consumers. We only make money if you purchase a product through our links, and all opinions about the products are our own. Read more  
BestReviews spends thousands of hours researching, analyzing, and testing products to recommend the best picks for most consumers. We only make money if you purchase a product through our links, and all opinions about the products are our own. Read more  
BestReviews spends thousands of hours researching, analyzing, and testing products to recommend the best picks for most consumers. We buy all products with our own funds, and we never accept free products from manufacturers.Read more 
Bottom line
Pros
Cons
Best of the Best
Wet & Forget Mold Stain Remover
Wet & Forget
Mold Stain Remover
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Best for Outdoor Use
Bottom Line

All-purpose for removing not only mold but other stains, too, and our cleaning expert highlights that no scrubbing is necessary.

Pros

The cleaning formula can remove moss, mildew, and algae stains in addition to mold. Mixed with water, the bottle makes around 3 gallons.

Cons

For the best results, the stain remover requires scrubbing after sitting for a while.

Best Bang for the Buck
CLR Mold & Mildew Stain Remover Spray
CLR
Mold & Mildew Stain Remover Spray
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Less Harsh Ingredients
Bottom Line

Between how effectively it works on many materials and its fast-acting formula, this product easily earns our expert's approval.

Pros

Especially affordable. Foaming solution rapidly dissolves caked-on mold stains. Effective on a wide range of surfaces, including glass, hardwood, and concrete.

Cons

May require more than 1 application to fully dissolve a strong stain.

Star Brite Mold and Mildew Stain Remover
Star Brite
Mold and Mildew Stain Remover
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Great for Boats
Bottom Line

Without requiring any elbow grease, Star Brite’s hardcore solution does the heavy lifting; just spray and wipe it away.

Pros

Available in 22, 32, and 128-ounce sizes. Easy to wipe clean without scrubbing. Versatile across many surfaces. Also lifts dirt and grease. Impressive strength.

Cons

Ancient mold and mildew stains may need multiple treatments.

Mold Armor Rapid Clean Remediation
Mold Armor
Rapid Clean Remediation
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Powerful Formula
Bottom Line

Our expert recommends this effective product for those who may have problems bending down and scrubbing.

Pros

Can be used indoors or outdoors on hard surfaces. Targets current mold and mildew, cleans stains, and hinders new growth. Has sanitizing properties for killing various bacteria and viruses. Results are seen in about a minute.

Cons

Has an overpowering smell.

Krud Kutter Mold and Mildew Stain Remover
Krud Kutter
Mold and Mildew Stain Remover
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Versatile Use
Bottom Line

Safe for removing mold stains from food prep surfaces, bathrooms, basements, and beyond, it easily blasts all sorts of caked-on grime, too.

Pros

Effective stain remover. Nontoxic and bleach-free. Inhibits mold and mildew regrowth. For use on a wide range of surfaces. Floral fragrance. Especially affordable. All-purpose cleaner.

Cons

You may need to use a little extra Krud Kutter for severe stains.

HOW WE TESTED

We recommend these products based on an intensive research process that's designed to cut through the noise and find the top products in this space. Guided by experts, we spend hours looking into the factors that matter, to bring you these selections.

56
Models
Considered
117
Consumers
Consulted
8
Hours
Researched
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For eliminating mold stains without replacing entire sections of walls or flooring, mold stain removers can be a great tool. Many mold stain removers get the job done on the first try and can provide protection for years, even in humid environments. Different products are designed for different surfaces, though some may be able to handle anything from concrete to drywall. Most mold stain removers are fairly safe and require little protection, but read the instructions carefully to make sure you are properly and safely using the product. Some mold stain removers come in a spray bottle, while others are a gel or a liquid that can be diluted with water.

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