; or (2) requires warnings that children, pregnant women, and other vulnerable populations should limit or avoid using the product. (b) Cosmetic products for professional use (1) Listing of ingredients The labeling of cosmetic products used and sold by professionals shall list all ingredients, as required for other cosmetic products pursuant to section 602(g). (2) Professional use labeling In the case of a cosmetic product that is intended to be used only by a professional on account of a specific ingredient or increased concentration of an ingredient and requires safe handling by trained professionals, the product shall bear a statement as follows: For Professional Use Only . (c) Display A warning required under subsection (a) and any statement required under subsection (b)(2) shall be prominently displayed— (1) in the primary language used on the label or on packaging; and (2) in conspicuous and legible type in contrast by typography, layout, or color with other material printed or displayed on the label. (d) Internet sales (1) In general In the case of internet sales of cosmetic products, each primary seller offering a cosmetic product for sale to consumers on an internet website shall prominently and conspicuously display on such internet website— (A) the same information that is included on the packaging of the cosmetic product as regularly available, such as any warnings, ingredient list, and contact information