What is it?
6-Methylcoumarin is a synthetic fragrance with a fruity coconut odor. 6-Methylcoumarin causes photo allergic contact dermatitis when it is used as a fragrance ingredient.

How can I avoid it?
Skin contact with 6-Methylcoumarin is required for it to cause a rash. Discontinuation of exposure to products containing 6-Methylcoumarin should result in improvement and/or resolution of your dermatitis. By law, all products made in the US for topical use have the ingredients listed either on the product package or the box that contains it, so check the labeling of your skin care products for this ingredient. If there is no information ask your pharmacist or call the company directly. At work, request a material safety data sheet (MSDS) to help identify potential sources of exposure.

  • Skin Care Products / Cosmetics
  • Antiperspirants / Deodorants 
  • Hair Colorants / “Permanents-Relaxers”
  • Make-ups
  • Moisturizers
  • Powders / Sprays
  • Shampoos / Conditioners
  • Shaving products
  • Soaps / Cleansers
  • Sunscreens and Self-Tanners
  • Coconut flavoring
  • Various vanilla flavorings
  • Other flavorings
  • Caramel
  • Nut
  • Butter
  • Fig
  • Root beer

Other names for 6-Methylcoumarin:
  • 6-MC
  • 6-methyl-1,2-benzopyrone
  • Toncarine
  • 6-methylcoumarinic anhydride
  • 6-methylbenzopyrone
  • 6-methyl-2H-1-benzopyran-2-one
  • Pralina
  • Cocodescol

Methyl coumarinPotential cross-reacting/co-reacting substances:
  • 7-Methylcoumarin
  • Coumarin
  • 7-Methoxycoumarin

How safe is it?

Hang tight. We're thinking.