MAC What's the WiFi is a moderately warm-toned, light green with a matte finish. It is a permanent eyeshadow that retails for $17.00 and contains 0.05 oz.
MAC What's the WiFi Eyeshadow ($17.00 for 0.05 oz.) is a bright, lime green with moderate, warm undertones paired with a matte finish. The eyeshadow had nearly opaque color payoff that adhered evenly to bare skin and blended out nicely along the edges without sheering out too readily.
The texture was lightly powdery, so it was more sensitive to natural oils or dampness on the skin, which means you'll want to apply to drier skin and/or over primer to ensure it doesn't darken (and look a bit yellower), but it was blendable and wasn't prone to sheering out too readily. This shade stayed on well for eight and a half hours and left a faint, yellowy stain behind.
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.
Talc, Zinc Stearate, Octyldodecyl Stearoyl Stearate, Isostearyl Neopentanoate, Tocopheryl Acetate, Caprylyl Glycol, Hexylene Glycol, Phenoxyethanol, [+/- Silica, Mica, Titanium Dioxide (Ci 77891), Iron Oxides (Ci 77491, Ci 77492, Ci 77499), Bismuth Oxychloride (Ci 77163), Blue 1 Lake (Ci 42090), Carmine (Ci 75470), Chromium Hydroxide Green (Ci 77289), Chromium Oxide Greens (Ci 77288), Ferric Ferrocyanide (Ci 77510), Manganese Violet (Ci 77742), Red 40 Lake (Ci 16035), Ultramarines (Ci 77007), Yellow 5 Lake (Ci 19140)]
Disclaimer: Ingredient lists are as available by the brand (or retailer) at the time of publishing. Please always check product packaging, if it exists, for the ingredient list applicable to the product you're purchasing, or the brand or retailer's website for the most up-to-date ingredient list.