Tarte Best Friend is a very warm-toned, very dark mauve with a matte finish. It is a limited edition eyeshadow.
Best Friend is a muted, medium-dark purple with subtle, cool undertones and a matte finish. It was rather powdery, so the color payoff was sheer and uneven. It started to look faded after seven and a half hours of wear. See comparison swatches / view dupes.