WATCH RATI’S MAKEUP VIDEOS, GET WEEKLY DIET PLANS FOR WEIGHT LOSS, AND READ IMBB REVIEWS EXCLUSIVELY! DOWNLOAD THE RATI BEAUTY APP! It has been talked of down the ages, how furrow lines or wrinkles on the forehead has been considered as a clear sign of ageing. And in most cultures, wrinkling of the forehead has been equated with experience and worldly wisdom. In other words, it can be said with absolute certainty that wrinkling is quite normal, but what causes…