MAC Mumu is a very warm-toned, light brown with a matte finish. It is a limited edition eyeshadow that retails for $17.00 and contains 0.05 oz.
Mumu is described as a "soft nude brown [with a Matte finish]." It's a muted, medium-dark ochre brown with warm, yellow undertones and a matte finish. The texture was so soft and smooth that it felt creamy, even though it was a powder product. It had good pigmentation with a blendable, easy-to-use formula that wore well for eight hours before fading slightly. LORAC Undeniable (P) is lighter. Sephora + Pantone Universe Carob Brown (LE) is less yellow. Too Faced Mousse (P, $16.00) is less yellow. Makeup Geek Preppy (P, $5.99) is similar. Anastasia Caramel (P, $12.00) is warmer, more orange. Makeup Geek Desert Sands (LE, $5.99) is warmer. Make Up For Ever M660 Speculous (P, $21.00) is similar. LORAC Nude #4 (LE) is darker. MAC Uninterrupted (P, $21.00) is darker, warmer. MAC Outre (LE, $15.00) is warmer, slightly darker. See comparison swatches / view dupes.
FURTHER READING: Formula Overview, which is a detailed review of the range as a whole.
M·A·C Eyeshadow is a highly pigmented powder formula that applies evenly and blends well. Suitable for use either wet or dry, it's available in a wide variety of textures and finishes.