Mildew is more than just an ugly stain; it's a living fungus that anchors itself to bathroom surfaces—and it won't go away until you kill it at its roots. Mildew is usually black but can appear pink, red or green. Highly humid areas have the most mildew growth.

Mildew often grows in bathrooms and other locations in the house because there is a combination of poor ventilation, moisture and food sources (i.e., body oil, soap scum, paint and oxygen). In the bathroom, mildew can grow anywhere: in grout, in shower tracking, on windowsills, on the ceiling and under the sink.

Mildew grows in grout because it is a porous surface that can be constantly wet. Mildew is also often found on bathroom ceilings because of poor ventilation and a ready supply of food and moisture. In addition, mildew can grow behind caulk if its watertight seal has been broken. Unfortunately once mildew moves behind the caulk, it is hard to penetrate with a cleaner. If this is the case, you should get professional cleaning assistance.

Mildew needs moisture, a source of nutrition and the right temperature to grow. To prevent mildew from growing, you need to improve ventilation in your bathroom by installing a fan or opening a window.

You can find stores near you that sell Tilex® Mold & Mildew Remover on our Where to Buy page. It's a good idea to call the store before going, to make sure they have it in stock.

Check the Coupons page to see if there are coupons available for Tilex® Mold & Mildew Remover. And sign up for the Clorox® newsletter to find out about new coupons via e-mail.

Clorox® Plus Tilex® Daily Shower is a bleach-free shower cleaner spray that forms a protective barrier that prevents soap scum, hard water deposits and mildew stains, while leaving behind a fresh scent. This Daily Shower Cleaner has a no-rinse, no-wipe, and no-scrub formula, just spray and walk away. On the other hand, Clorox® Plus Tilex Mold & Mildew Remover Spray with Bleach not only removes ugly stains, it kills the mold and mildew that causes them. It penetrates and lifts off soap scum with detergent-type surfactants to kill the mildew lurking below the surface.

Mold and mildew are both fungi. Typically, mold is black or green, and mildew is gray or white. Fungi can grow and leave unsightly stains on food, exercise areas (Athletes Foot fungus), bathroom walls, basement walls or fabrics. Mold stains and mildew stains can be prevented by using Clorox® Plus Daily Shower Cleaner in your shower. Mold and Mildew can be killed by using Clorox® Plus Tilex® Mold and Mildew Remover.

Tilex® Mold & Mildew Remover is designed to kill and remove tough mildew without damaging most bathroom surfaces. It penetrates and lifts off soap scum with detergent-type ingredients (surfactants) to kill the mildew lurking below the surface. Plus the bleach in Tilex® Mold & Mildew Remover decolorizes mildew and kills it.

Tilex® Mold & Mildew Remover is safe for use on most bathroom surfaces including grout, glazed ceramic tile, tubs, fiberglass, glass shower doors, vinyl curtains, counters, sinks and no-wax floors. Tilex® Mold & Mildew Remover is safe for use on synthetic marble. You should rinse immediately after use on rubber, plastic and vinyl. Avoid prolonged contact with metal and old porcelain as Tilex® Mold & Mildew Remover can react with these materials and leave a temporary “rust” stain. We do not recommend using Tilex® Mold & Mildew Remover on wood or painted surfaces unless you plan to refinish or to repaint them. Avoid contact with aluminum, clothes, fabric, carpet or paper surfaces.

The active ingredient in Tilex® Mold & Mildew Remover, sodium hypochlorite, loses its strength after one year.

You can use Tilex® Mold & Mildew Remover on most bathroom surfaces. You can also use Tilex® Mold & Mildew Remover on cement pool areas and outdoor furniture (vinyl & plastic). Sponge the product on full strength and rinse immediately.

No. Dangerous fumes form when mixed with other products. Do not use or mix with toilet bowl cleaners, rust removers, acids, or products containing ammonia. To do so will release hazardous gases.