Who invented self-help manicure?

Self-help nail art is not invented by one person, it is a constantly evolving nail art form. According to relevant public information, the history of self-help manicure can be traced back to the late 1970s, and the start-up manicure industry began to popularize artificial nails. However, due to its high price and the need for professional equipment and skills, it naturally failed to catch on. Until the end of 1980s and the beginning of 1990s, a fake nails product named "press-onnails" appeared in Japanese and American markets, which became the pioneer of self-help manicure. ..