Hair dye is a transformative tool that can help create and shape your own unique identity, especially in those tricky transitional periods in life. As Greta Gerwig's college-aged character in 20th Century Women shows, it can also totally revamp your look. With a shaggy, deep-red pixie cut, Gerwig's Abbie fully looks the part of an early 1980s punkster—but her free-spirited vibe would fit in just as well in 2017.
The Technique: While Abbie dyes her own hair, it's best to consult a professional colorist if you want to go red. Depending on your natural hair color, it might be necessary to bleach your hair before applying your desired hue. But if it's the empowering experience of dyeing your own hair that you're after, a jar of temporary Manic Panic will give you the red tresses you crave—and in a few shampoos, it will be gone.