Contact

Questions, corrections, and requests are all welcome.

What we are glad to hear

• Corrections — a number, a study, or a regulation that is wrong or out of date.
• Ingredient requests — something you would like covered.
• Questions about a post — what a concentration means, how to read a label.
• Permission requests — to quote or translate a post.

What we cannot do

• Diagnose your skin or tell you what is causing a problem.
• Recommend a specific product for your skin.
• Give medical advice, or advise on treatments and prescriptions.

For any of these, please see a dermatologist. This site writes about ingredients in general and is not a substitute for a consultation.

How your email is handled

We use the address you write from and the content of your message only to reply. Inquiries are deleted within one year of the last exchange. Details are in the Privacy Policy.