You can shop it in two colors (white and black) and the Sonic Pro cleans with both ultrasonic and UV-C light. This means your Invisalign, retainers or aligners will be free of 99.99 percent of bacteria, viruses and pathogens, according to the brand.

Know that off-putting odor your retainers get after a few uses? This machine will get rid of that too. In just three to five months you'll have clean, odor-free aligners with no muss, and no fuss.

Just remember, use three minutes for normal cleaning and five minutes for deep cleaning — something you'll need if you've never actually spent time cleaning your year-old retainers.

Apart from the usual aligners and retainers, the Sonic Pro can also be used to sanitize night guards and toothbrush heads.

How does it get such a thorough cleaning? It uses 43,000Hz ultrasonic waves to dislodge the smallest particles of dirt and grime with ease.

Then, it uses UV-C light, which cleans out bacteria, viruses, and pathogens. The dual cleaning system is just what you need for retainers you wear in your mouth every single day.

Many shoppers seem to love the Sonic Pro too for its quick cleaning abilities.

'I love my Sonic Pro!', says one customer. 'It keeps my appliance spotless, and is so easy to use and clean. I wish I would have discovered it sooner!'

Another chimes in, 'I never felt as if my Invisalign retainers were really clean with just brushing. Now, with the Sonic Spa Pro and the tablets I know they are clean and disinfected. A great and much-needed product!'

The best part? It comes dentist-approved too, with one saying, 'Love it, our patients love it too — teeth seem whiter because it cleans whitening trays and retainers so well.'

Shop the Sonic Pro here at its reduced price before you miss your chance. Say goodbye to dirty, yellowing retainers for good!