It was copied from a small brown bottle. The originator of muscle fluid is Estee Lauder. The brown bottle has a history of more than 30 years, and the black bottle is only a few years old. Moreover, its patent was filed in 10, and will not be upgraded in 10. On the other hand, Estee Lauder still puts
The core of the research is the small brown bottle, which is upgraded every year. After it became popular, except for the little black bottle, Dior red bottle, Helena Rubinstein green bottle and so on, all families followed suit. .