MAC Sweet & Sour is a slightly warm-toned, light-medium peach with a natural finish. It is a permanent lipstick that retails for $20.00 and contains 0.1 oz.
Sweet & Sour is described as a "soft peach cream [with a Cremesheen finish]." It's a lightened, pink-tinted peach with a creamy, natural sheen. It is rich in color with full color coverage, and it was creamy, medium-weight, and lasted four and a half hours when I tested it earlier today. NARS Bolero is more matte and pinker. NARS Biscayne Park is warmer, more peach/orange. MAC Shy Girl is sheerer but similar. MAC Reel Sexy is pinker. MAC In a Heartbeat is slightly darker. MAC Ever Hip is pinker. Estee Lauder Naked is more matte, slightly pinker. Burberry Pink APricot is a bit darker, slightly browner. See comparison swatches.
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.