The invention provides an
eyebrow growth
efficacy evaluation method of an
eyebrow pencil, which can use an advanced digital light-emitting
microscope and digital
skin imaging integrated
system, combines a VISIA-CR instrument, shoots close-up and clinical images, can observe and quantify the change of
eyebrow growth, and adopts an AI hair identity
tracking system; and individual
hair follicle growth trajectory tracking across time points is realized. Meanwhile, in combination with the density
score of a dermatologist, the product
efficacy is evaluated objectively and semi-objectively in all directions, the actual effect of the eyebrow pencil on the
human body is evaluated more effectively, and the accuracy and objectivity of evaluation are greatly improved. Compared with animal experiments,
human body efficacy testing has great advantages, only a small amount of hair needs to be collected to be observed through a high-resolution
imaging technology, and animals or human bodies are completely noninvasive and painless.