What grade is pearl muscle?

Pearl muscle belongs to middle and high grade. According to relevant information, Japanese pearl skin care brand madamahada is positioned as a high-end brand in Japan, and duty-free shops are also very popular. The brand promotion in the advertisement is very low-key, mainly by word of mouth. In Japanese, the meaning of "true pearl" is pearl. The "Pearl Muscle" series of skin care products developed by WSP company is a kind of skin care products that can create pearl-like skin.