
Tired of scrubbing stubborn mold, dirty grout lines, and unsightly stains? Old, discolored grout can make even the cleanest bathroom look terribly dated.
Don't spend a fortune on professional regrouting! Our Pro-Grade Grout Pen instantly revives your tile lines and restores your home to a pristine condition in just one stroke.
Simply draw over the existing grout! It applies smoothly, touch-dries quickly, and creates a long-lasting waterproof barrier.
Instead of just painting over the dirt, it effectively seals the gaps around toilets, bathtubs, and sinks to keep moisture and daily grime out.
Unlike standard paints that wash away, our upgraded formula creates a heavy-duty, moisture-resistant shield.
Once cured, water and soap simply bead up and rinse right off! It withstands daily showers and routine cleaning without peeling or fading.
12,483 Customer Reviews
Feedback themes: grout coverage, shower waterproofing, application ease, shipping speed, and longevity.
Customer photos & before/afters
Saved me $1,500 on regrouting
Moving out of my rental house and the bathroom tiles looked nasty. Took 20 mins to whiten everything. Got my full deposit back!
Kitchen looks brand new
Years of grease turned my white kitchen grout yellow. Look at the photo! It completely restored the original clean white look.
Good product, tip wears a bit
Covers deep stains instantly! Just a tip: if your tile lines are rough cement, don't press too hard or the felt tip gets fuzzy.
Get the 3-pack! One isn't enough
Thought 1 pen would do my entire bath floor, but ran out. Glad I bought the Buy 2 Get 1 Free deal. Matched my floor perfectly.
No messy cleanup!
Better than using liquid grout or silicone tubes. Flows smoothly like a marker and wipes off tiles easily if you make a mistake.
Arrived in 5 days, works like magic
Package came faster than expected. I used it along my shower base where mold keeps coming back. Make sure to wipe the area dry first! Covered the black lines easily. Ordering another 3-pack for my kitchen.
No chemical smell at all!
I have asthma so I can't use heavy bleach cleaners. This pen has practically no chemical smell. Dried touch-dry in a few mins. Showered 24 hours later and it stayed solid without washing off.
Waterproof seal actually works
Tested it around my bathtub where water collects all the time. After a month of daily showers, no peeling, no cracking, and no black spots coming through. Great quality!
Safe around pets and toddlers
We have two curious indoor cats and a toddler. Loved that this is water-based and non-toxic. It dried super fast and made our entryway tile floor look like new without dangerous chemical fumes.
Pro tip: Shake it well before use!
It works really well, but you need to follow the instructions: shake it with the cap on and press the nib down on paper to get the ink flowing. Once it starts, it glides super smoothly over tiles.
Best $35 spent on my home this year
I was quoted $800 to regrout my master bathroom shower. Used 3 pens from the bundle offer and did it myself in under an hour. The contrast against dark gray tiles is stunning!