Cinnamic aldehyde in toothpaste. 1. Clinical aspects and patch tests.

@article{Magnusson1975CinnamicAI,
  title={Cinnamic aldehyde in toothpaste. 1. Clinical aspects and patch tests.},
  author={Bertil Magnusson and Daryl S. Wilkinson},
  journal={Contact dermatitis},
  year={1975},
  volume={1 2},
  pages={70-6}
}
Although cinnamon is known to cause dermatitis in bakers and confectioners, it has only rarely been reported as causing trouble in food or cosmetics. A newly-formulated 'spicy' toothpaste containing cinnamon as a flavouring agent was the cause of oral symptoms in eight patients referred to clinics in Buckinghamshire and in Malmö and in a further eight patients discovered subsequently. Similar symptoms and patch test results were observed independently at both centres. Positive reactions were… CONTINUE READING

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