Medium grade. According to the official website of Dr. Ai'er, we learned that Dr. Ai'er is a domestic skin care brand and is a very popular brand. Dr. Ai'er's skin care products are mainly hydrating and are loved by many female friends. They are mid-range. . Not a micro-business brand. Dr. Aier is a brand under Shandong Freda Bioengineering Co., Ltd. It is a domestic brand positioned in the mid-range market. The products have guaranteed quality and performance and are suitable for mid-range consumers. It has won many awards and recognition from consumers, has 200 national invention patents, and is a top-notch high-end product in the field of skin care. The direct source of Dr. Ai'er is Freda Biological Co., Ltd. DrAlva is a brand of Shandong Freda Bioengineering Co., Ltd., which is affiliated to Shandong Freda Pharmaceutical Group. It was jointly established in 1992 by Freda International Co., Ltd. of the United States and the Academy of Pharmaceutical Sciences of the Shandong Provincial Department of Commerce. Dr. Nuan's skin care products use natural plant ingredients without added chemical ingredients. They are very gentle to the skin and will not cause allergies or irritation. The various nutrients it contains can moisturize the skin and make it moist and elastic. During use, you can clearly feel that its absorption effect is very good.