Biore, Olay, Nivea, and MaryKay are all major skin care companies. Biore is a Japanese brand that specializes in facial cleansers and masks. Olay is an American brand that offers a wide range of skin care products, including moisturizers and serums. Nivea is a German brand that focuses on body care products such as lotions and creams. MaryKay is an American brand that offers a variety of makeup and skin care products. All four of these companies have become giants in the skin care industry, offering a wide range of products to meet the needs of their customers.