Piret Aava — better known as "The Eyebrow Doctor" — is renowned for her work in microblading. Kaleigh Fasanella from Allure went to see her after hearing that brow shape can totally change your face and impression. Kaleigh says Aava moved lightning-fast, seemingly tweezing 10 hairs at a time and trimming as she went and then tinted her brows with a semi-permanent custom blended dye made to match a persons skin and eyes that lasts up to 6 weeks.