This patient information on Colophony is provided by John L. Meisenheimer, M.D. a board certified Dermatologist and skin care specialist based in Orlando, Florida. This information is not intended as a substitute for the medical advice or treatment of a dermatologist or other physician.
The results from your patch testing showed a positive reaction (contact allergy) to Colophony. Your immune system reacts with its defense mechanisms with each exposure of Colophony to your skin. It is unknown why certain individuals develop allergic sensitivities. In some it may take repeat exposures over long periods of time before an allergy develops. Once you have become sensitized (allergic) your immune system always "remembers" and you will continue to be Colophony sensitive. If you currently have eczema this chemical may be the cause but other factors may play a role as well. The information below will help you avoid this allergen.
This agent is a sticky amber material distilled from the sap of pine trees. It is found in a wide variety product including cosmetics.
Where is chemical found?
Adhesives and cements
Athletic grip aid
High quality gloss paper
Postage stamp glue
Salicylic acid plasters
Sawdust (especially pine)
Violin bow rosin
Yellow laundry soap
Hints on avoiding chemical:
Because this chemical is found is a wide variety of products, it is important to use only ingredient-labeled products that do not list Colophony or any of its synonyms on the label.
Inform your dentist that you are allergic to Colophony (rosin).
Wear gloves when applying products that contain this chemical.
Avoid other evergreen trees in addition to pine trees unless you have been tested negative.
Choose products listed only on your personalized contact allergen database, which has been provided to you. Products listed on your contact allergen resource database will be free of Colophony (Rosin) and safe to use.
Please be aware that if your spouse or significant other uses topical skincare products that contain this chemical skin to skin transfer may occur to you.
It may take 2 to 3 weeks of avoiding exposure before improvement of your eruption begins.
Other names you may see Colophony listed as:
Methyl abietate alcohol
Rosin solder flux fume
Possible Occupational Exposures*
Electrical and Electronic engineers, technician and Assemblers
Elevator Installers and Repairer
Furniture & wood finishes
Janitors and Maids
Mechanic controllers and Valve repairers
Plumber and Pipe fitters
Printing machine operators
Sheet metal workers