Essential oils in their primary extracted form, including deterpenated versions and by-products of deterpenation, belong under 3301. Mixtures of odoriferous substances—including those based on essential oils—used as raw materials in food, beverage, or industrial manufacturing are classified under 3302. The key distinction is whether the product is a pure extracted oil or a compounded mixture prepared for a downstream use.

The US does not require pre-market approval for cosmetics, but FDA may detain or refuse entry for products that are adulterated, misbranded, or fail to meet ingredient and labeling requirements under the FD&C Act and the Modernization of Cosmetics Regulation Act. Importers should ensure ingredient lists, labeling, and facility registration are in order before shipment.