The compound 1,4-dioxane itself is not used as an intentionally added ingredient in cosmetic or personal care products. It is a manufacturing by-product that may be present in extremely low levels in some cosmetic and personal care product ingredients. These ingredients include certain cleansing materials (i.e., detergents), foaming agents, emulsifiers and solvents etc.
ITC Labs capabilities
Can be analyse at ppm level in cosmetics by GC-FID-HS (Gas chromatography with Head space.)