Safe. Dingzhuang lipstick is a product of Dingzhuang Biotechnology Co., Ltd. It uses high-quality raw materials, such as a variety of vegetable oils, and does not add harmful chemical ingredients. It is officially certified and protected by law, so Dingzhuang lipstick is very safe. Dingzhuang Biotechnology Co., Ltd. was established in 2020 and is located in Guangzhou City, Guangdong Province. It is an enterprise mainly engaged in research and experimental development.