The ingredients and materials used in tampons vary by brand. For example, U by Kotex® Click® Tampon Regular contains rayon, water, polyester, polyethylene, paraffin wax, and pigment white 6 (titanium dioxide)

. Tampax Pearl & Tampax Radiant tampons key ingredients are cotton and viscose rayon

. Common tampon ingredients include rayon, cotton, titanium dioxide, fragrance, and BPA

. Tampax tampons are primarily made from absorbent ingredients like purified cotton, rayon fibers, or a blend of both, along with other materials like polypropylene, polyethylene, polyester, and various coatings and waxes

. It's important to note that manufacturers of period products are not currently required by law to disclose all ingredients, and some potentially harmful chemicals have been found in tampons, although their sources are not always clear