MAC Holiday Secret is a slightly warm-toned, medium-dark teal with a pearl finish. It is a limited edition eyeshadow that retails for $17.00 and contains 0.05 oz.
Holiday Secret is a muted, medium-dark teal with subtle, cool undertones and a pearly sheen. It had medium pigmentation paired with a smooth, firmer consistency that felt cream-like but thin--very silicone-heavy to the touch. I find that when an eyeshadow has too much slip (but is a powder-based formula) that the shade doesn't apply as evenly to bare skin and tends to look patchy while losing some of its intensity/richness as it is buffed and blended onto the skin. It had a Lustre finish, so the sheerness was more in line with expectations. It was buildable to semi-opaque coverage, if desired, and it stayed on well for seven and a half hours on me.
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.