Su:m37° is a Korean skincare brand known for its natural, fermented ingredients and focus on gentle, effective products. It is a subsidiary of LG Household & Health Care. The brand emphasizes the use of fermented botanicals and a patented ingredient called Cytosis® to rejuvenate the skin. They offer a range of products, including cleansers, toners, essences, and sunscreens, often formulated with minimal additives.