Study procedures and assessments
redness
The subjects applied an equal amount to 0.6–0.8 g per time of the investigational lotion twice daily to their face for 30 days. After 15 min of resting in a room, the subjects were asked to complete the BoSS questionnaire on the repairing effect of the sensitive skin barrier. The dermatology assessments, including transepidermal water loss (TEWL), moisturization, and redness were conducted using the S0083 TEWL Probe, S0033 Moisture Measurement Probe, and S0043 Melanin Measurement Probe of CK-MPA® system (CK-MPA10, Courage + Khazaka electronic GmbH, German), respectively. Probes were lightly and quickly pressed on the surface of skin. The evaluation of redness profile indicator that was calculated by evaluating the dense and red areas integrated was performed by using the VISIA®-CR system (Canfield Scientific Inc., NJ, USA). The indicators described above plus BoSS (Table 