Montreal Ostomy Stop-Odor Plus Deodorant: REVIEW

Montreal ostomy stop odor plus review header

I previously reviewed an in-pouch deodorant from the company Montreal Ostomy called Gel Plus.  That product was a lubricating deodorant that works best for colostomates, but I’ve been able to try a liquid deodorant from the same company, which is what I’ll be reviewing today.

Disclosure: The product used in this review was purchased through a local supplier.

About Stop-Odor Plus Deodorant

Product name: Stop-Odor Plus Deodorant
Manufacturer: Montreal Ostomy Inc.
Product #: MOC STOPPLUS 8 (for 8oz bottle)
Size: 8 fluid OZ (240ml); a 4oz and 1oz travel size is also available.
Quantity per package: 1 bottle

Stop-Odor Plus is a liquid pouch deodorant that can be used by ileostomates and colostomates, but people who have thicker output may prefer the lubricated version called Gel Plus.

This deodorant (like many others) is colored blue, and I often find colored deodorants to be more trouble than they’re worth (they can stain clothing), but I personally don’t mind blue lubricating deodorants, since it makes it easier to see whether the product has fully coated the inside of the pouch (when using a clear pouch).

This product is odorless, and it’s been designed to kill odor-causing bacteria in your bag.

Like Gel Plus, this deodorant is also free of animal ingredients, which I love!

Montreal ostomy stop odor plus back of bottle
It’s nice not to have to go searching for an ingredients list.

Stop-Odor Plus contains the following ingredients:

Purified water, copper complexes, citrates, DMDMH*.

*DMDMH, which is also in Gel-Plus, is an ingredient that contains formaldehyde. As I mentioned in the Gel-Plus review, this may or may not be a concern, since low amounts of formaldehyde can be found naturally in our bodies and the foods we eat.

The bottle has a folding top that allows for easy dispensing of the product into your pouch, but I find that the tip does get a little messy, which results in blue liquid on my fingers and on the cap.  I often found myself needing to use toilet paper to close the top so that it can clean it at the same time – it’s annoying for sure.

Montreal ostomy stop odor plus dirty cap
While easy to open, the cap is often messy after using it.

Does it Work?

According to the instructions, you should add 4-12 drops into your ostomy bag every time you empty it.  Now, the product website says that Stop-Odor Plus is “Acclaimed as the World’s most powerful pouch odor eliminator on the market!”, but that’s certainly not at 4 drops, or even 12, unfortunately.

I find that a “squirt”, which can be 20+ drops to be effective most of the time, but it’s not as consistent as I’d like it to be.

Even when I rinse my bag out with water and add Stop-Odor Plus to it, it doesn’t fully work 100% of the time.  That’s not to say it should be 100% effective 100% of the time, but there’s no way this would even be close had I used it at the recommend quantity,

I also didn’t find that it makes any difference whether my output was liquid, loose, or thick; it worked well in most circumstances, but it was less effective during my morning bathroom visit.

That said, most deodorants aren’t completely effective when it’s time to empty in the morning because of the combination of the quantity of output in the bag and also the fact that odor gets stronger over time.


At the time of this writing (Jan 2022), Gel Plus sells for around CDN$24 (240ml), and Montreal Ostomy says that their products are sold in North America through distribution partners.

My previous insurance company (Green Shield Canada) covered this pouch deodorant without a problem – they cover all in-pouch deodorants.

Samples don’t look to be available through the manufacturer, but if you can find travel sizes, they won’t be too expensive.


  • Usually works well to tackle pouch odor.
  • Contains no animal ingredients.
  • Can be dispensed with one hand (even to open and close the top).
  • Comes in three sizes, including a travel size.


  • Inconsistent results when using the recommended quantity.
  • Limited availability (distributed in the USA and Canada)
  • The bottle tip can be messy and requires cleaning after use.
  • You need to add this product to your pouch every time you empty it.

Recommended, but there are better options

When I use a little more (a lot more) than recommended, this product does work well most of the time.

There are better products out there, but like many other deodorants, their availability may be limited to a country or continent.

If you have an ileostomy, this product should work well for you, but if you require lubrication to prevent pancaking, try something else as this product will not lubricate your pouch.

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Question: Have you used this pouch deodorant? How did it work for you?

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