MAC Viva Glam Sia is a neutral-toned, medium-dark red with a matte finish. It is a limited edition lipstick that retails for $19.00 and contains 0.1 oz.
MAC Viva Glam Sia Lipstick ($17.50 for 0.10 oz.) is a rich, medium-dark red with neutral-to-cool undertones and a matte finish. MAC described it as a "warm" red, though it looked cooler on me and occasionally, neutral, but it had a pinkish base when I sheered it out.
It had rich, opaque pigmentation that covered my lips with smooth, even color in a single stroke. The texture was dense, slightly firm, but it slid across my lips in a fluid motion with moderate pressure that avoided dragging. It was lightweight, thin without being clingy, and it sat well on my lips. The color was still going strong after five hours of wear, and it was neither drying nor hydrating over time.
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.