Toothpaste allergies are uncommon, but for those who experience them, they can be uncomfortable and persistent. Allergic reactions often appear as irritation around the mouth and may worsen over time if the cause isn’t identified.

Common Symptoms of Toothpaste Allergies

If you are sensitive or allergic to an ingredient in your toothpaste, you may notice symptoms such as:

• Inflamed or cracked lips

• Redness at the corners of the mouth

• Irritation on the palms (especially on the hand holding the toothbrush)

• Burning or irritation of the tongue or gums

• Increased gum or tooth sensitivity

• Mouth ulcers that do not heal

If you experience any of these signs, schedule an appointment with Tooronga Family Dentistry for a proper assessment.

What Causes Toothpaste Allergies?

Most toothpaste allergies stem from flavouring ingredients, especially strong flavours such as:

• Spearmint

• Cinnamon

• High-intensity mint blends

These flavours are often not clearly listed on toothpaste packaging, making it difficult to pinpoint the exact trigger.

Other Possible Irritants in Toothpaste

In addition to flavourings, several other ingredients can cause irritation or allergic reactions:

• Cocamidopropyl betaine (CPB): A foaming agent derived from coconut oil, common in toothpaste and shampoo

• Propylene glycol: A preservative and mixing agent

• Essential oils

• Antibacterial additives

These substances can also be found in chewing gum, mouthwash, and other oral care products, which may trigger similar symptoms.

What to Do if You Suspect a Toothpaste Allergy

If you experience any allergic symptoms, consult your GP or Dr. Daniel Kaufman so the irritant can be properly identified.
Many patients find that symptoms disappear after they stop using the offending toothpaste. Once you know which ingredient is causing the reaction, Dr. Daniel Kaufman can help you find a hypoallergenic or ingredient-free alternative.