MAC Instigator is a moderately warm-toned, dark purple with a satin finish. It is a permanent lipstick that retails for $21.00 and contains 0.1 oz.
MAC Instigator Lipstick ($16.00 for 0.10 oz.) is described as a "deep blackened plum [with a Matte finish]." It's a blackened, purpled wine with berry-pink undertones that leans slightly cool and has a satiny sheen. It had semi-opaque color coverage, but it has a little more slip to it that makes it look somewhat patchy. It's not the worst offender for this shade family, but I would recommend wearing a lip liner underneath to minimize unevenness. It lasted for six hours and left a stain behind, but it was neither drying nor hydrating. See comparison swatches / compare dupes side-by-side.
FURTHER READING: Formula Overview, which is a detailed review of the range as a whole.
Formulated to shade, define and showcase the lips, M·A·C Lipstick is available in every nuance of your favorite color and high-fashion texture. It's the iconic product that made M·A·C famous. AMPLIFIED CREME (A): Ultra-creamy. Quietly shiny. Color-packed! Hi-res: hi-impact. CREMESHEEN (C): Creme-based lipstick that imparts bright full color, with a soft and supple shine. FROST (F): Excellent color payoff with medium to high frosted shimmer-and-shine finish. LUSTRE (L): Demi-sheer with wet-look lustre finish. Very slick. Makes lips look soft, smooth, ultra-moist. MATTE (M): Pigment rich with intense color pay-off. No-shine, all matte finish. SATIN (S): Color-rich. Soft satin, semi-matte finish. Conditions while adding intense color.