Cosmetics refer to chemical industrial products or fine chemical products that are spread on any part of the human body surface, such as skin, hair, nails, lips and teeth, by smearing, spraying or other similar methods, for the purpose of cleaning, maintenance, beautification, modification and change of appearance, or correction of body odor and maintenance of good condition.

Cosmetics usually come into direct contact with the human body, and their safety issues have attracted much attention. Countries around the world have corresponding laws and regulations to control cosmetics to protect the health of consumers. Cosmetics sold in the Chinese market must comply with relevant product standards.

Cosmetics testing refers to the use of relevant laboratory instruments and equipment to conduct tests on the ingredient content of various types of cosmetics to comply with national laws and standards, ensure the hygienic quality and safety of cosmetics, and protect the health of consumers.

▌The main testing items for cosmetics are (including but not limited to):

Cosmetics: formaldehyde, di(2-ethylhexyl) phthalate (DEHP), butyl benzyl phthalate (BBP), dibutyl phthalate (DBP), methanol, lead, mercury, arsenic, diethylene glycol, pH value, total bacteria count, fecal coliforms, Staphylococcus aureus, Pseudomonas aeruginosa, mold and yeast counts, pigments (Pigment Red 57, Golden Red C, Rhodamine B), preservatives (benzoic acid, sorbic acid, benzyl alcohol, methylparaben, ethylparaben, propylparaben, butylparaben), hormones (dexamethasone, cortisone, prednisone, chloramphenicol, thiamphenicol, florfenicol).

Cosmetics (raw materials): lead, mercury, arsenic, total bacteria count, fecal coliforms, Staphylococcus aureus, Pseudomonas aeruginosa, total mold and yeast count.