Key Ingredients

Green tea extract

Green tea extract protects collagen, an essential part of our teeth: Researchers have found that a specific component of green tea called epigallocatechin gallate (eGCG) helps to protect the surface of our teeth by inhibiting the enzymes that break down collagen. Green tea extract also has antimicrobial properties that help to reduce halitosis (bad breath). For Dr. Heff’s mints, we use a green tea extract that contains no caffeine, so that everyone is able to enjoy its benefits.

Green tea update: There have been recent news reports of rare liver injury caused by high levels of green tea extract catechins (EGCG) in some dietary supplements. Green tea has been shown to have many benefits to our health; however, if it is taken in extremely high dosages there are risks and the European Food Safety Authority (EFSA) has recommended a daily maximum dosage of 800mg EGCG. Our mints include low levels of green tea extract (5.3mg of EGCG per mint) and studies by the University of Illinois Dental School demonstrated that these levels are necessary to repair tooth decay. So we are happy to reassure all our customers that the quantity of green tea in our mints does not pose a meaningful risk to health. In fact, one would need to eat more than 150 mints per day just to reach the EFSA safety limit of 800mg per day.

Calcium phosphate

Calcium and phosphate are key parts of the building blocks that form our teeth and bones. As our teeth are attacked by bacteria, the calcium and phosphate in our teeth are stripped out. That’s why we included calcium phosphate in Dr. Heff’s Remarkable Mints’ unique formulation: it helps to repair teeth that have been damaged by tooth decay through the process of remineralisation.


Xylitol is a naturally occurring sweetener found in many fruits and vegetables. To maintain their correct structure, your teeth rely on essential minerals. When they lose these minerals – in a process called demineralisation – it can be the first sign of tooth decay. Fortunately, in the early stages of tooth decay, these minerals can be replaced and your tooth repaired in a process called remineralisation. Dr. Heff’s mints use Xylitol as a sweetener instead of sugar to help remineralise your teeth. Xylitol has also been proven to fight tooth decay by neutralising plaque acids in the mouth and making it harder for the bacteria that cause decay to stick to your teeth.

Natural peppermint oil

Xylitol is an excellent base ingredient for Dr. Heff’s Remarkable Mints (5 of our mints contain 3.5 grams of Xylitol in total) because it is naturally sweet, helping our mints to taste great. However, we felt that on its own even Xylitol doesn’t do enough to protect your teeth, so we combined it with natural peppermint oil. Dr. Heff’s Remarkable Mints use natural peppermint oil to keep your mouth feeling refreshed and to help combat bad breath.