The House of Mouth Promo Codes
There's a moderate chance you'll find a working The House of Mouth promo code right now. On this page you'll find 30 codes ranked by what's actually worked at checkout. The best one to try is DHW1 for 15% off.
How often The House of Mouth codes work
Each bar is one week of real shopper results: the greener the bar, the better the chance a code worked that week. Paler bars carry limited data.
| Discount | Last used | Performance | Promo code |
|---|---|---|---|
| 14% off sitewide | 3d ago | — | VDAY25 |
| 40% off All Tray Packages | 6w ago | — | SWFS |
| 10% OFF | 3w ago | — | WELCOME10 |
| 20% off almost everything + 40% off whitening trays | 3mo ago | — | SW20 |
| Up to 20% off Opalescence Whitening & Toothpastes | 11mo ago | — | OPL23 |
| 15% off Polanight with $99+ spend | 3mo ago | — | MBR324A |
| 12% off Opalescence $99+ spend | 11mo ago | — | MBR224A |
| 15% off Poladay products with $99+ purchase | 3w ago | — | MBRI24A |
| 12% off Opalescence Whitening Products | 11mo ago | — | MBRI121 |
| 10% off Chlorofluor Range | 11mo ago | — | PDS71 |
| 13% off Select Oral Care Products | 4w ago | FANG2025 | |
| 20% off Fresh Breath Range | 3w ago | GUM2025 | |
| 15% off Whitening | 3w ago | APD25 | |
| 10% off CHILDREN'S ORAL CARE | 6d ago | CFKIDS | |
| 12% off all Oral Care Products | 6d ago | PPF25 | |
| 20% off sitewide | 6d ago | — | AP2026 |
| 15% off all whitening products | — | — | PPCF26 |
| 14% off all whitening products | 6mo ago | — | CFGLOW |
| 15% off sitewide | 7mo ago | — | SMILE26 |
| Up to 40% off sitewide | 6mo ago | — | EARLYBIRD |
| 12% off Poladay Whitening | — | — | M248B |
| 12% off Children’s Oral Care | 6d ago | — | M248A |
| 15% OFF $110, 20% OFF $149+ | 1y+ ago | — | SMILE&SAVE |
| 15% off PHILIPS and Colgate Power Brushes | 1y+ ago | — | CHEEKY15 |
| 20% off all Pola products, no minimum spend | 1y+ ago | — | PL20 |
| 15% off | 1y+ ago | — | AP15OFF |
| 15% OFF Teeth Whitening Products | 1y+ ago | — | AP1SOFF |
| 14% Off + Free AUS Shipping | 1y+ ago | — | VDAY24 |
| 10% off Poladay Products | 1y+ ago | — | MBRIO1 |
About this page
Introducing a more honest way to find coupon codes
Every code has a history, and we track it
Codes fail for boring reasons: they expire, they only cover one category, they only apply to a first order. Calling any of them "verified" would be a guess dressed up as a fact. We publish the chance instead, built from checkout data and shopper answers, and we track it over time.
Likely not workingMixed resultsHigh chance of working
You'll find one of these charts on every code we list, tracking how it has performed over time.
When there is nothing worth trying, we say so
When we don't think there is a working code for a store, we say so right at the top of the page, before you spend time scrolling.
Good chance right now78%
Nothing likely right now9%
A code that works at breakfast can be dead by lunch. Nobody can promise otherwise, so we don't stamp anything here as "working" or "verified". We tell you the chance of a code working instead, based on real shopper feedback and data, and when the chance is poor we say that out loud.
