After applying your sunscreen, do you find your skin red, blistery, or scaley? This could be a sign that you have an allergic contact dermatitis, aka skin allergy, to Isoamyl-p-methoxycinnamate. You can find out by getting patch testing done by a dermatologist. If you suspect this may be the case or have a confirmation of this skin allergy from your dermatologist, it is important that you familiarize yourself with this chemical and take steps to avoid coming in contact with it.
What is Isoamyl-p-methoxycinnamate and where is it found?
This chemical is an UV‐B adsorbing agent commonly used in sunscreen cosmetics such as creams, lotions, lipsticks and sun oils. Further research may identify additional product or industrial usages of this chemical.
What else is Isoamyl-p-methoxycinnamate called?
This chemical can be identified by different names, including:
4-Methoxycinnamic acid, isoamyl ester
Neo Heliopan E1000
This may not be a complete list as manufacturers introduce and delete chemicals from their product lines.
Here are some steps you can take to help manage your contact allergy:
- Be vigilant / read the product label. Always take the time to read the ingredient listing on product packages. This should be your first step each time you purchase a product as manufacturers sometimes change product ingredients. If you have any concerns ask your pharmacist or your doctor.
- Test the product first. If you have purchased a new product you should test it on a small skin area to see if you get a reaction before using the product on larger skin areas.
- Advise people you obtain services from of your contact allergy. This should include people like your pharmacist, doctor, hairdresser, florist, veterinarian, etc.
- Inform your employer if the source of your contact allergy is work related. You should identify the specific source of the chemical and take the necessary steps to avoid further exposure. Protective wear may be adequate or you may need to make a change in your work activities. Both you and your employer benefit when the cause of your occupational dermatitis is eliminated.
- “Google” it. The internet is an excellent source of ingredient information that can be searched by product, by company and by specific chemical. Some helpful independent internet links include:
Other Helpful Resources:
www.nlm.nih.gov/pubs/factsheets/factsheets.html (U.S. Dept. of Health and Human Services; alphabetic list)
www.nlm.nih.gov/pubs/factsheets/factsubj.html (U.S. Dept. of Health and Human Services; subject list)
www.cosmeticsinfo.org (Cosmetic Industry Category Ingredient Database)
www.whatsinsidescjohnson.com (information on all S.C. Johnson product ingredients)
If you have any future contact dermatitis concerns or questions and would like to schedule and appointment at a location nearest to you, click here.
Click here for more information on allergic contact dermatitis.