No, she won't tell you what red lipstick she wears on Riverdale ("I will absolutely never divulge that," Petsch said) she did say she applies it herself for the show. A tip she learned along the way? "I always conceal around my lips afterward because that gives it that crisp line — I learned that from my makeup artist [Erin Mackenzie]."
Image Source: Photo: Shane Harvey/The CW