Though many people regard a fair skin as the ultimate sign of beauty, not everyone is blessed with it. While our skin naturally produces a pigment called melanin that gives its color, it is the external factor such as heat, pollution, and bacteria that add to the melanin production, causing our skin to develop a tan. We must understand the

Nowadays, there are a wide variety of skincare products in the market. According to products sales channels, there are supermarkets like Wal-Mart, professional beauty salons, B2C e-commerce like Amazon, social platform, independent station, and brands counter etc. In fact, the essential difference between skincare products in these channels is the difference in formula, and the brand route is also positioned