GroutGlow - Cover stains instantly for fresh, clean tiles

✔ Instantly conceals stubborn grout stains: RenewalPro's water-based pen covers orange, brown, and black stains in a single stroke, restoring the fresh look of your tiles - without vigorous scrubbing or regrouting.

✔ Keeps grout fresh longer with mold protection: The integrated anti-mold formula prevents mold from returning, keeping your grout clean and fresh for months, especially in damp areas such as kitchens and bathrooms.

✔ Safe and gentle for the whole family: This non-toxic, low-odor formula allows you to safely refresh grout in households with children and pets - even in small bathrooms - without worrying about harsh chemicals or strong fumes.

Does the color match my existing grout?

With 12 available shades ranging from bright white to coffee and dark gray, most users will find a suitable option for typical grout colors. For custom grout colors, testing in an inconspicuous area is recommended for a perfect color match.

How long does it last in damp shower areas?

On walls and backsplashes, clean grout can be expected to last for several months with regular cleaning. In heavily used showers, refreshing every few months with the pen keeps the grout looking fresh for longer.

Is it safe to use around children and pets?

Yes, the water-based, non-toxic, low-odor formula contains no harsh bleaches or chemicals. It is safe for indoor use without needing to air out the room for hours afterward.

A water-based grout pen in the selected color