What is it? 
Cinnamic Aldehyde has a sweet, spicy odor typical of cinnamon. It is a perfume and flavor chemical. 

How can I avoid it? 
Allergic contact dermatitis from Cinnamic Aldehyde principally occurs from fragrances in cosmetics and household products. It is also a flavoring, particularly in toothpaste. Since perfumes and fragrances contain dozen of chemicals a listing of the individual ingredients such as cinnamic aldehyde is not given. Thus an individual must avoid all fragranced cosmetics to be certain to prevent allergic contact dermatitis that is due to cinnamic aldehyde. Pre-testing with the fragrance prior to use is important and is done by applying a small amount on a limited area of the forearm twice daily for 1 week. Bakers may develop hand dermatitis due to this chemical from spices used in cooking. A generalized dermatitis from ingestion of foods and spices containing cinnamic aldehyde is quite uncommon.

Uses
  • Cinnamon, Ceylon and cassia oil 
  • Foods
    • Baked goods 
    • Candy 
    • Cola 
    • Chocolate 
    • Chewing gums 
    • Flavoring agents
    • Ice cream 
    • Spices, including cinnamon 
  • Fragrances 
    • Perfumes, colognes, aftershaves 
    • Cinnamic aldehyde is found in the fragrance compounds called Balsam of Tolu and Balsam of Peru 
  • Fragranced household products
    • Deodorizers
    • Detergents
    • Soap 
  • Personal care products
    • Aftershave lotions
    • Bath soaps
    • Cosmetics 
    • Medicated creams and ointments
    • Mouthwashes/breath fresheners
    • Perfumes and fragrances
    • Sunscreen
    • Toothpaste/dentifrices 
  • Plants such as hyacinth 
  • Vermouth 
  • Bitters 
  • Fungicide 
  • Insecticide 
  • Animal repellent 
  • Corrosion inhibitor for steel 
  • Solvents and surfactants in industry 

Other names for Cinnamic Aldehyde
  • Cinnamal 
  • Cinnalmaldehyde 
  • 3-Phenyl-2-propenal 
  • Phenylacrolein 
  • 2-Propenal-3-phenyl 
  • Cinnamyl aldehyde 

Potential cross-reacting/co-reacting substances
  • Balsum of Peru 
  • Benzoin

How safe is it?

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