FAQs

Does UN-DOO really work?
You bet your butt it does. UN-DOO prevents over 99% of toilet odors. We’re so confident you’ll be happy, we offer a 100% money-back guarantee, no questions asked.

How does UN-DOO work?
UN-DOO is a proprietary formula of essential oils, surfactants & odor neutralizers that creates a layer of stink-stopping goodness to keep odors trapped in the bowl. By automatically dispensing UN-DOO with every flush, your nose is always protected — don’t worry, just go.

Will UN-DOO turn my toilet water blue?
Nope. UN-DOO is clear. You might notice some bubbles after flushing and a sheen on top of your toilet bowl water. Your guests won’t notice a thing, other than the total absence of stink after they do their business.

Is UN-DOO safe for my plumbing & septic system?
Yes! We use an all-natural, non-corrosive formula that is safe for toilet parts, plumbing, septic tanks, cesspools & sewer systems.

How often do I need to refill my UN-DOO dispenser?
Once a month. The UN-DOO dispenser holds enough for 400 flushes. Which means a family of four with two bathrooms will need to refill UN-DOO about every 30 days.
Live alone? UN-DOO will last longer.
Have a big family or host a lot of parties? You might need to refill your UN-DOO sooner than 30 days. Subscribe to get UN-DOO refills shipped monthly!

Why did you invent UN-DOO?
Everybody poops, but everybody shouldn’t have to smell it. The solutions to this problem just weren’t good enough for us here at UN-DOO: Air fresheners don’t work and they spray harmful chemicals into the air. Candles don’t work and they’re dangerous. Essential oil sprays are great, but it’s embarrassing to have a big bottle labeled “Crap Spray” on the back of your toilet. We have a bold mission: to help you never smell it again. Join us.