A paper "Evaluation of the Effects of Shampoo and Scalp Essence Use on Head Hair," by Shiba Palace Clinic, G.M CORPORATION and SOUKEN, was published in "Medical Consultation & New Remedies" (2023; 60: 188-193).

The article reports the evaluation that the use of shampoo and scalp essence resulted in significant improvements in the number, diameter of hairs and so on.

The evaluation was conducted using the customized model of GOKO EV-6HD multi-distance scope by GOKO Imaging Devices Co., Ltd.