Sample preparation, trademark and brand information, quality inspection application form. Chenzhou cosmetics testing is carried out in accordance with the "Hygienic Standards for Cosmetics" by applying, spraying and other methods. Sample preparation, trademark and brand information, and quality inspection application forms are required. The routine testing of cosmetics is appearance, odor, stability, pH value, Active substance, effective substance. The heavy metals detected in cosmetics are lead, arsenic, mercury, cadmium, antimony, nickel, and hexavalent chromium.