As a gal who grew up in the ‘90s, I was over the moon to discover this totally nostalgic beauty trend — people didn't necessarily do it in the '90s, there's something about it that just feels '90s.

If you were one of those kids that used to put stickers all over their furniture, ear lobes, clothes, and walls, chances were you eventually made it up to your hair. Well, it turns out you were onto ...