Used this on a day that I was feeling a little under the weather with a head cold. I alternated using it on my forehead and chest. After 20 minutes I did feel a bit more clear headed!
在我感覺有點頭冷的天氣下使用了這個。我在前額和胸部交替使用它。 20分鐘後，我確實感覺頭腦清醒了一點！
