Inclusion Criteria:  Healthy volunteer with normal vital signs Volunteers who agree to participate and sign the Informed Consent Form, following a detailed explanation of clinical trials DASS 21 score within normal limits BMI: 18.5 - 23 kg/m2  Exclusion Criteria:  Inappropriate condition for auricular acupuncture due to skin disease (the skin of the acupuncture point is swollen, hot and red) Pregnant woman or breastfeeding woman or woman in period Other diseases that could affect or interfere with outcomes, including cardiovascular disease, thyroid disorder, facial disease. Taking vasodilators or sunscreen in the examined skin areas Taking stimulant (alcohol, beer, coffee, tobacco) within 24h Massage or cupping therapy or acupuncture in facial area within 24h Playing sport within 2h