Even though dyeing hair dates back to 1500 BC when Egyptians used henna to camouflage gray hair, many colorful hair trends such as rainbow hair and pastel shades have just become popular in recent years. We should probably be thankful to Kylie Jenner when, in 2014, she set herself apart from natural-looking hair techniques and embraced now-iconic teal blue tips. And, of course, it instantly caught many fashionistas’ attention. Taking advantage of this wave, the hairstylist Ursula Goff has…