Guerlain #18 is a moderately warm-toned, medium-dark brown with a pearl finish. It is a permanent lipstick that retails for $36.00 and contains 0.12 oz.
Guerlain #18 Rouge G de Guerlain Lip Color (2018) ($33.00 for 0.12 oz.) is a soft, medium, reddish-brown with warm undertones and a fine, pearly sheen. It had good pigmentation--just shy of full coverage--that applied evenly and smoothly across my lips without dragging. The texture was lightweight, emollient without being too slippery, and was comfortable to wear. The color stayed on well for five hours and was hydrating over time.
FURTHER READING: Formula Overview, which is a detailed review of the range as a whole.
For this exceptional lipstick, Guerlain has sealed intense colour and luscious lip care into a jewel formula. Enriched with plant-based polymers and silver microcrystals with a reflective power, this exceptional formula beautifully enhances lips, cloaking them in intense and luminous long-lasting colour. Jojoba and mango butter help to nourish lips, offering them instant and lasting comfort. Hyaluronic acid and gugul resin help to smooth and plump up lips. The sweet, enveloping scent of a vanilla “floriental” leaves its incomparable mark on Rouge G de Guerlain. Top notes sparkle with a lemon, orange and bergamot accord. The rose and iris heart exudes sweetness. The vanilla and tonka bean drydown gives Rouge G all of its intensity.