On January 22, 2025, China National Institutes for Food and Drug Control (NIFDC) released nine testing methods for public consultation, with feedback accepted until February 21, 2025. One of the methods is the Li and 42 Kinds of Elements (Draft for Comments).

This method specifies the use of Inductively Coupled Plasma Mass Spectrometry (ICP-MS) to measure the concentration of 43 elements in cosmetics and toothpaste. The elements include lithium, beryllium, boron, scandium, vanadium, chromium, manganese, cobalt, nickel, copper, arsenic, selenium, rubidium, strontium, yttrium, zirconium, silver, cadmium, indium, tin, antimony, tellurium, cesium, barium, lanthanum, cerium, praseodymium, neodymium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium, mercury, thallium, lead, bismuth, and thorium.