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Xanthan Gum
A high-molecular polysaccharide excretion product from bacteriae (Xanthomas campestris) composed of glucose, mannose & glucuronic acid. It is used as a thickener in cosmetics and also foods.
Xanthene
Large class of certified colorants. The acids are derived from fluorescein. The quinoid acid type is represented by FD & C Red NO. 3, erythrosine, used often in lipsticks. The phenolic formulations, often called bromo acids, are represented by D & C Red No. 2, used to stain lips. The only basic type certified is D & C Red No. 19, also called rhodamine B.
Xerosis
Dry skin.
Ximenia Americana
Widely distributed family of tropical shrubs and trees. Its essential oils has a scent like sandelwood and is used in fragrances.
Xylose
A flavoring agent. | 
