This is a review of Bonjela’s Complete Plus. The company claims that this product will create a protective layer over mouth ulcers and can last for up to four hours. They also claim that this product will help relieve and soothe the discomfort and pain that often comes with canker sores. Please keep reading to see if this product is ideal for you.


The ingredients listed for this product are:

  • Carboxylic acids
  • Mineral acid
  • Cellulose derivative
  • Ethanol (Anhydrous)
  • Purified Water
  • Orange Flavor


According to the directions, you will need to use the spatula provided with the product to help evenly cover and coat the ulcer. Then you must leave your mouth open until it dries. If you close it before it is able to dry, you will end up ruining the treatment. This product can be applied up to 4 times a day. If the ulcer has not healed within fice days, you should consult your doctor.

Possible Side Effects

The packaging states you should not give this to children due to the fact that there may be a possible association linked with a derivative of salicylic acid and Reye’s syndrome. This is a very rare disease but it can be fatal. People who are allergic to salicylic derivatives should not use this product.

The company also states that this product should not be used on large ulcers (1 cm in diameter) or on many tiny ulcers (herpes-like ulcers).


The price for this product differs from seller to seller, and it is not sold directly from the manufacturer’s website. From the various sites I have looked at, the suggested retail price is $14.81 but prices can reach up to $22.00 depending on who you purchase it from. It must also be stated that this product is from the UK and international shipping charges may apply.


There is no guarantee found on the manufacturer’s website. The best way to play it safe in case you are unhappy with the product is to purchase it from an authorized retailer who has a return policy where you can return the product after it has already been opened and used. There is also a link to contact the company if you have any questions or concerns.

As far as reviews go, this product has had some positive ones. Many state that this product has offered instant pain relief upon application.


Bonjela’s Complete Plus seems to be an ideal product for those searching for protection and pain relief from canker sores. The reviews support and back the claims of the product as well. Not only does it seem to live up to its claims, there is extensive information on the product.

While Bonjela’s Complete Plus may live up to its claims, the price, lack of guarantee, and availability is something that may deter a potential customer. Because it is a UK brand, it may be hard to find in different countries. Also, there have been reviews where the spatula of the product has caused more irritation upon application since it is not as soft as the company claims it is. While the product may have a bounty of information on it, the fact is that it is difficult to purchase a product with a lack of a guarantee. This should prompt you to look for an alternative solution.

Click here to learn about our Top Canker Sore Treatment Products.