Myth file № 23 · Ballpoint ink
Does toothpaste remove stains?
It is a mild abrasive, so it scrubs marks off hard surfaces and sneaker rubber. On fabric it mostly spreads.
01 The verdict
Non-gel white toothpaste is a fine abrasive (silica or calcium carbonate) with a little detergent. On scuffed rubber soles, gloss paint and some hard plastics, it can polish marks away.
On fabric it does little to dissolved stains such as ink or wine, and the abrasive and colourants can leave a pale residue. On wood finishes and polished stone it dulls the surface.
Use the stain's actual method on fabric; keep toothpaste for sneaker soles.
02 What actually works
Ballpoint ink on wall
- Wipe with alcohol. Wipe with rubbing alcohol on a cotton pad or cloth until the ink lifts, then wipe with a damp cloth and dry.
- Wash gently. Wash with a soft sponge and a few drops of dish soap in warm water, using light circles. Rinse with a clean damp sponge and pat dry.
- Rinse and blot. Wipe with a clean damp sponge and pat dry with a soft cloth. If a faint mark remains, touch up with matching paint rather than scrubbing.
Never: Hairspray, Scrubbing matte paint.
03 The products in question
Baking soda
Sodium bicarbonate: a mild alkali, a gentle abrasive and an odour absorber. Dry, to absorb oil and odours (then vacuum); as a paste with a little water or hydrogen peroxide for scrubbing and poultices.
Alkalis break down fats and acidic soils and help detergents work. Strong alkalis damage protein fibres such as wool and silk, and can dull stone and wood finishes.
04 About ink
Ink carries dye that soaks into fibres rather than sitting on them. Depending on the dye, alcohol dissolves it, oxygen bleach breaks it down, or sunlight fades it, and speed matters more than strength.
The oily part of ink will not dissolve in water at all. It needs a surfactant such as dish soap, or a solvent, to break it up, and a dry powder can draw fresh oil out before you start.
Ink is a polymer: long molecules that set into a film or a sticky mass. Each one needs either its own solvent or a change of state, freezing or softening, rather than scrubbing.
- Ballpoint ink is dye dissolved in an oily, glycol-based paste. Water barely touches it; alcohol, which dissolves both, lifts it.
- The old hairspray trick worked because hairspray used to be mostly alcohol. Today's formulas add resins and oils that can leave a second stain.
- Put a paper towel under the stain and dab from above: the ink transfers into the towel instead of spreading sideways.
The full ink dossier covers every surface on file.
05 What never to do with ink
- Hairspray. Modern formulas add resins and oils that leave a second stain; rubbing alcohol is what the trick relied on.
- Scrubbing flat or matte paint. Friction polishes the paint and leaves a shiny patch that shows more than the mark.
06 Questions
So what should you use on ink instead?
On wall: wipe with alcohol and wash gently. The order matters as much as the products.
Is the myth harmful?
It can be, depending on the product and material. A general myth verdict does not establish safety or a measured success rate. Follow the item and product labels, pretest a permitted treatment and stop for any change. Consult a specialist if compatibility is uncertain.
Does it work on wall?
On wall, the file rates ink stubborn (3 of 5). It is a mild abrasive, so it scrubs marks off hard surfaces and sneaker rubber. On fabric it mostly spreads.