Relaxation response is impacted by physiological and psychological considerations. This study investigates the effect of a fragrance on the relaxation response triggered by a shampoo and a serum product. Two research cells were executed in identical hotel room facilities involving female shampoo or serum users. A control sample was evaluated to provide a neutral baseline against which the test samples could be compared. A concentrated fragrance was evaluated after the test samples. Nonverbal tools were chosen to measure relaxation covering physiology (heart rate, inter beat interval [IBI] variation, blood pressure [BP], and electrodermal activity [EDA]), mental and physical tasks (reaction time and handgrip strength), and behavior measures (posture and posturer switches). Results indicated that the physiology measures were most useful in demonstrating a relaxing effect of the fragrance in the shampoo and serum products. For example, the application of the shampoo caused an increase in IBI variation, a decrease in EDA and the concentrated shampoo fragrance caused a decrease heart rate. Serum application caused a decrease in BP and a decrease in heart rate. This study enabled to claim about emotional benefits of the scent of the hair care products with strong scientific evidence to support it.

中文翻译：

---

运用科学手段证明牡丹香精在护发产品中的放松特性

放松反应受生理和心理因素的影响。这项研究调查了香精对香波和血清产品触发的松弛反应的影响。在相同的酒店房间设施中执行了两个研究室，涉及女性洗发水或血清使用者。评价对照样品以提供可与测试样品进行比较的中性基线。测试样品后评估浓香。选择了非言语工具来测量涵盖生理的放松（心率，心跳间隔[IBI]变化，血压[BP]和皮肤电活动[EDA]），心理和生理任务（反应时间和握力）以及行为指标（姿势和姿势器开关）。结果表明，生理措施最能证明香波在洗发剂和血清产品中的放松作用。例如，洗发水的使用会导致IBI变化的增加，EDA的下降，浓缩洗发水的香气会导致心率下降。血清应用导致血压降低和心率降低。这项研究能够声称护发产品的气味具有情感上的好处，并有强有力的科学证据来支持它。