You must want to why the length of our lashes is 8mm-15mm.
Do you know the The golden ratio ? Yes, our designers according to the The golden ratio and thousands of eyes to do the length is 8mm-15mm that the most suitable for the eyes.
This is the introduce of The golden ratio :
The golden ratio, also known as the golden rule, refers to a certain mathematical proportional relationship among the various parts of the thing. The ratio of the larger part to the smaller part is equal to the ratio of the whole part to the larger part. The ratio is about 1: 0.618, which is the length of the entire section of 0.618. 0.618 is recognized as the most aesthetically significant proportion of figures. The above ratio is the ratio that most causes human beauty, and is therefore called golden section. The application has a magical charm in life.