NARS Mezmer is a slightly cool-toned, medium-dark fuchsia with a cream finish. It is a limited edition lipgloss that retails for $26.00 and contains 0.18 oz.
NARS Mezmer Lipgloss ($26.00 for 0.18 fl. oz.) is described as a "sheer neon pink." It's a brightened, fuchsia pink with cool, blue undertones and a glossy shine. It is a darker, brighter take on Glow Pink. It had semi-sheer pigmentation that didn't cover evenly but did stain. The texture was smooth and mostly non-tacky, and it was comfortable to wear. It lasted for three and a half hours on me. Get comparison swatches / compare dupes side-by-side.
FURTHER READING: Formula Overview, which is a detailed review of the range as a whole.