Do cosmetic formulators and cosmetic R&D engineers have academic qualifications? Is it better to go to graduate school? Is there any personality requirement in this profession?

It depends on what kind of company is hiring. There are still some general academic requirements, and they have basically studied chemistry or biology and other related majors. Of course, it would be better to be a graduate student. The working environment also depends on the company, generally speaking, it is a laboratory environment, and a good company pays attention to the environment of product research and development. Salary also depends on your ability and education. Generally, the requirements of newly graduated students are not very high, so you should start as an engineer assistant. R&D engineers should have the ability to independently develop new product formulations, be familiar with various raw materials of cosmetics, and be able to independently solve product formulation problems. There is no special requirement for personality, but at least you can calm down and study the formula.