"I like to think of the GUERLAIN Precious Light Rejuvenating Illuminator as a brightening magic wand; everywhere the soft bristles touch glows and radiates light." - Keavy, Escentual Beauty Team.. Why You'll Love The GUERLAIN Precious Light Illuminator:. A brightening pen that conceals imperfections and highlights.. Lifts and defines your facial features.. Illuminates dark under-eyes for a fresh, youthful appearance.. Creates a natural finish with an ever so subtle golden shimmer.. Topped with soft built-in bristles for flawless, precise and comfortable application.. Why It's Escentual:. The GUERLAIN Precious Light wand hides imperfections like a concealer and adds shimmer and radiance like a highlighter, all in one swift motion. The ultra-lightweight concealer refreshes dark areas and enhances your features, thanks to the formula's Gold Burst pigments, which add delicate gold undertones that reflect the light and add a subtle touch of luminosity.. The illuminator is incredibly versatile; it can be applied to either brighten areas that show ageing - like dark circles and expression lines - or highlight/slim down your features - like the sides of your nose or hollows of your chin - for a more sculpted look.. The Best Way To Use It:. Use before or after applying makeup. To make your skin appear more youthful, apply to expression lines, crows feets and the lip contour. For a fresher look, apply to dark circles, eye bags and across the top of the cheekbones.