Dark circles around faucets are usually caused by mineral deposits (hard water), soap scum, or even mild mold. The good news is they’re pretty easy to remove with the right approach.
Start simple: mix equal parts white vinegar and water. Soak a cloth or paper towel in it and wrap it around the base of the faucet. Let it sit for 20–30 minutes so it can break down the buildup. After that, scrub gently with an old toothbrush or a soft brush, then rinse and wipe dry.
If the stain is stubborn, sprinkle a little baking soda over the area first, then spray or pour vinegar on top. It’ll fizz and help lift the grime. Scrub lightly and rinse.
For really tough mineral rings, you can use a descaling cleaner or even lemon juice (the acid works similarly to vinegar). Just avoid anything too abrasive like steel wool—it can scratch the finish.
If the dark ring looks more like mold (black and slightly patchy), use a mild bleach solution or a bathroom mold cleaner instead, then rinse thoroughly.
Finally, to keep it from coming back, wipe the area dry after use and clean it regularly—standing water is what usually causes those rings in the first place.
If you want, tell me what your faucet is made of (chrome, stainless steel, etc.), and I can suggest the safest method for that specific finish.
