Guerlain #31 is a very warm-toned, very dark pink with a satin finish. It is a permanent lipstick that retails for $33.00 and contains 0.12 oz.
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Guerlain #31 Rouge G de Guerlain Matte Lip Color ($33.00 for 0.12 oz.) is a muted, medium-dark rosy pink with strong, warm undertones and a satin finish. It had nearly opaque color payoff that adhered evenly and smoothly across my lips without tugging or dragging during application.
The lipstick had a lightweight, more velvety consistency so it felt like it glided with ease over my lips but didn't feel slippery or "wet" during wear. This shade applied better than some, but it just didn't lay as smoothly nor was as forgiving of my lip lines/minor lip texture imperfections compared to the original range of Rouge Gs (and this formula is supposed to do the same with respect to smoothing). The upside was that the color didn't settle into my lip lines further while worn, so it was only visible in the close-up photos but not in person. It lasted well for five hours and felt lightly hydrating while worn.
FURTHER READING: Formula Overview, which is a detailed review of the range as a whole.
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Guerlain allows you to customise your style down to your lips with the new Rouge G Matte de Guerlain Lipstick. Sealing intense colour and luscious lip care into a jewel formula, this lipstick comes in a wide range of shades and fits neatly in the Customised Case.
Diisostearyl Malate, Polyglyceryl-10 Nonaisostearate, Jojoba Esters, Synthetic Wax, Bis-Behenyl/Isostearyl/Phytosteryl Dimer Dilinoleyl Dimer Dilinoleate, Isostearyl Hydroxystearate, Hydrogenated Microcrystalline Wax, Silica, Hydrogenated Styrene/Methyl Styrene/Indene Copolymer, Octyldodecanol, Ethylhexyl Palmitate, Irvingia Gabonensis Kernel Butter, Disteardimonium Hectorite, Calcium Aluminum Borosilicate, Hydrogenated Coco-Glycerides, Caprylic/Capric Triglyceride, Parfum (Fragrance), Ethylhexyl Hydroxystearate, Commiphora Mukul Resin Extract, Bht, Propyl Gallate, Trihydroxystearin, Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate, Butylene Glycol, Caprylyl Glycol, Tocopherol, Phenoxyethanol, Sodium Hyaluronate, Hexylene Glycol, [+/- Ci 77891 (Titanium Dioxide), Ci 77491, Ci 77492, Ci 77499 (Iron Oxides), Ci 12085 (Red 36), Ci 15850 (Red 6, Red 6 Lake, Red 7, Red 7 Lake), Ci 15985 (Yellow 6 Lake), Ci 19140 (Yellow 5 Lake), Ci 42090 (Blue 1 Lake), Ci 45410 (Red 27, Red 28 Lake), Ci 73360 (Red 30 Lake), Ci 77163 (Bismuth Oxychloride), Ci 45380 (Red 21, Red 21 Lake), Ci 77742 (Manganese Violet)].