The Gluten Free Myth: Since gluten must be ingested to be toxic, cosmetics and skin-care products are not a problem.
The Reality: It’s not that simple. “Gluten containing skin care products and cosmetics aren’t a problem unless you swallow them.” This statement sounds like the end of the discussion, particularly since it comes from a respected authority like The Mayo Clinic.
However, this answer does not deal with the issue of gluten free lipstick and other cosmetics that are applied to the lips . These products are certainly ingested, at least in small quantities. I searched the Avon, Estee Lauder, and Revlon websites and found no useful information. I found three smaller companies that specify that their lip cosmetics are gluten free: Afterglow, Burt’s Bees, EccoBella, and Red Apple (which includes the term “gluten free” on its home page).
Another complication is that there a group of websites that urge us to go “topically gluten free”. These sites believe we must never allow gluten to come into contact with our bodies — whether the product is ingested or not is irrelevant. Since there are several sites, I won’t give you a specific link. If you are interested in pursuing this matter, google the term “topically gluten free”.