Got my answer. Here are the relevant parts:
While a formulation may contain no wheat, oat, barley or rye derivatives, for the benefit of our gluten-sensitive consumers who may have cross-sensitivities, M.A.C takes the extra precaution of including corn, rice and soy in our research.
Amplified Crème Lipstick - contains barley extract, wheat germ extract and soybean extract. Lustre Lipstick contains ingredients derived fron Corn and Soy. Cremesheen lipsticks contain soybean and wheat germ. Glaze Lipstick - contains corn and soy. Frost Lipstick - contains corn and soy. Satin Lipstick contains ingredients derived from Corn and Soy. Matte Lipstick contains ingredients derived from corn.
Matte Lipsticks
INGREDIENTS: OCTYLDODECANOL [] RICINUS COMMUNIS (CASTOR) SEED OIL [] SILICA [] TRICAPRYLYL CITRATE [] OZOKERITE [] ISONONYL ISONONANOATE [] PARAFFIN [] PHENYL TRIMETHICONE [] MICROCRYSTALLINE WAX \CERA MICROCRISTALLINA\CIRE MICROCRISTALLINE [] ETHYLHEXYL PALMITATE [] CAPRYLIC/CAPRIC TRIGLYCERIDE [] COPERNICIA CERIFERA (CARNAUBA) WAX\CERA CARNAUBA\CIRE DE CARNAUBA [] ASCORBYL PALMITATE [] TOCOPHEROL [] VANILLIN [] ACRYLATES COPOLYMER [] POLYETHYLENE TEREPHTHALATE [] STEARYL STEAROYL STEARATE [] [+/- MICA [] TITANIUM DIOXIDE (CI 77891) [] IRON OXIDES (CI 77491, CI 77492, CI 77499) [] BLUE 1 LAKE (CI 42090) [] CARMINE (CI 75470) [] RED 6 (CI 15850) [] RED 6 LAKE (CI 15850) [] RED 7 LAKE (CI 15850) [] RED 21 LAKE (CI 45380) [] RED 28 LAKE (CI 45410) [] RED 30 LAKE (CI 73360) [] RED 33 LAKE (CI 17200) [] YELLOW 5 LAKE (CI 19140) [] YELLOW 6 LAKE (CI 15985) [] YELLOW 10 LAKE (CI 47005)]
Satin Lipstick:
INGREDIENTS: RICINUS COMMUNIS (CASTOR) SEED OIL [] TRIOCTYLDODECYL CITRATE [] GLYCERYL TRIACETYL HYDROXYSTEARATE [] EUPHORBIA CERIFERA (CANDELILLA) WAX [] OCTYLDODECANOL [] SILICA [] SIMMONDSIA CHINENSIS (JOJOBA) SEED OIL [] BEESWAX (CERA ALBA) [] SESAMUM INDICUM (SESAME) SEED OIL [] OZOKERITE [] COPERNICIA CERIFERA (CARNAUBA) WAX [] CETYL RICINOLEATE [] MICROCRYSTALLINE WAX (CERA MICROCRISTALLINA) [] TOCOPHEROL [] ASCORBYL PALMITATE [] VANILLIN [] [+/-(MAY CONTAIN) MICA [] TITANIUM DIOXIDE (CI 77891) [] IRON OXIDES (CI 77491, CI 77492, CI 77499) [] BISMUTH OXYCHLORIDE (CI 77163) [] CARMINE (CI 75470) [] BLUE 1 LAKE (CI 42090) [] RED 6 (CI 15850) [] RED 6 LAKE (CI 15850) [] RED 7 LAKE (CI 15850) [] RED 21 (CI 45380) [] RED 21 LAKE (CI 45380) [] RED 28 LAKE (CI 45410) [] RED 30 LAKE (CI 73360) [] RED 33 LAKE (CI 17200) [] YELLOW 5 LAKE (CI 19140) [] YELLOW 6 LAKE (CI 15985) [] YELLOW 10 LAKE (CI 47005)]
Lustre Lipsticks
INGREDIENTS: RICINUS COMMUNIS (CASTOR) SEED OIL [] DIPENTAERYTHRITYL HEXAHYDROXYSTEARATE/HEXASTEARATE/HEXAROSINATE [] EUPHORBIA CERIFERA (CANDELILLA) WAX\CANDELILLA CERA\CIRE DE CANDELILLA [] CAPRYLIC/CAPRIC TRIGLYCERIDE [] PVP/HEXADECENE COPOLYMER [] POLYETHYLENE [] ETHYLHEXYL METHOXYCINNAMATE [] CETYL ACETATE [] LANOLIN OIL [] CETYL LACTATE [] BUTYROSPERMUM PARKII (SHEA BUTTER) [] POLYDECENE [] BEESWAX\CERA ALBA\CIRE D’ABEILLE [] GLYCINE SOJA (SOYBEAN) SEED EXTRACT [] TOCOPHERYL ACETATE [] ASCORBYL PALMITATE [] CERAMIDE 3 [] SYNTHETIC WAX [] SYNTHETIC BEESWAX [] SILICA [] CALCIUM SODIUM BOROSILICATE [] CALCIUM ALUMINUM BOROSILICATE [] ALUMINA [] TIN OXIDE [] ACETYLATED LANOLIN ALCOHOL [] CETYL ALCOHOL [] VANILLIN [] [+/- MICA [] TITANIUM DIOXIDE (CI 77891) [] IRON OXIDES (CI 77491, CI 77492, CI 77499) [] BISMUTH OXYCHLORIDE (CI 77163) [] BLUE 1 LAKE (CI 42090) [] CARMINE (CI 75470) [] RED 6 (CI 15850) [] RED 6 LAKE (CI 15850) [] RED 7 LAKE (CI 15850) [] RED 21 (CI 45380) [] RED 28 LAKE (CI 45410) [] RED 30 LAKE (CI 73360) [] RED 33 LAKE (CI 17200) [] YELLOW 5 LAKE (CI 19140) [] YELLOW 6 LAKE (CI 15985) [] YELLOW 10 LAKE (CI 47005)]
Glaze Lipsticks
INGREDIENTS: RICINUS COMMUNIS (CASTOR) SEED OIL [] TRIOCTYLDODECYL CITRATE [] GLYCERYL TRIACETYL HYDROXYSTEARATE [] SIMMONDSIA CHINENSIS (JOJOBA) SEED OIL [] EUPHORBIA CERIFERA (CANDELILLA) WAX\CANDELILLA CERA\CIRE DE CANDELILLA [] OCTYLDODECANOL [] TRICAPRYLIN [] BEESWAX\CERA ALBA\CIRE D’ABEILLE [] OZOKERITE [] PHENYL TRIMETHICONE [] HYDROGENATED POLYISOBUTENE [] COPERNICIA CERIFERA (CARNAUBA) WAX\CERA CARNAUBA\CIRE DE CARNAUBA [] CETYL RICINOLEATE [] MICROCRYSTALLINE WAX \CERA MICROCRISTALLINA\CIRE MICROCRISTALLINE [] TOCOPHEROL [] ASCORBYL PALMITATE [] CALCIUM SODIUM BOROSILICATE [] CALCIUM ALUMINUM BOROSILICATE [] ALUMINA [] TIN OXIDE [] SILICA [] VANILLIN [] [+/- MICA [] TITANIUM DIOXIDE (CI 77891) [] IRON OXIDES (CI 77491, CI 77492, CI 77499) [] BISMUTH OXYCHLORIDE (CI 77163) [] BLUE 1 LAKE (CI 42090) [] CARMINE (CI 75470) [] RED 6 (CI 15850) [] RED 6 LAKE (CI 15850) [] RED 7 LAKE (CI 15850) [] RED 21 (CI 45380) [] RED 21 LAKE (CI 45380) [] RED 28 LAKE (CI 45410) [] RED 30 LAKE (CI 73360) [] RED 33 LAKE (CI 17200) [] YELLOW 5 LAKE (CI 19140) [] YELLOW 6 LAKE (CI 15985) [] YELLOW 10 LAKE (CI 47005)]
Cremesheen Lipstick
INGREDIENTS: PENTAERYTHRITYL TETRAISOSTEARATE [] BIS-DIGLYCERYL POLYACYLADIPATE-2 [] CAPRYLIC/CAPRIC TRIGLYCERIDE [] OLEIC/LINOLEIC/LINOLENIC POLYGLYCERIDES [] EUPHORBIA CERIFERA (CANDELILLA) WAX\CANDELILLA CERA\CIRE DE CANDELILLA [] PVP/HEXADECENE COPOLYMER [] DIPENTAERYTHRITYL HEXAHYDROXYSTEARATE/HEXASTEARATE/HEXAROSINATE [] DIISOSTEARYL MALATE [] POLYETHYLENE [] POLYDECENE [] POLYBUTENE [] CETYL LACTATE [] SYNTHETIC WAX [] HYDROGENATED DILINOLEYL ALCOHOL [] BUTYROSPERMUM PARKII (SHEA BUTTER) [] GLYCINE SOJA (SOYBEAN) SEED EXTRACT [] OLEA EUROPAEA (OLIVE) FRUIT EXTRACT [] TRITICUM VULGARE (WHEAT BRAN) EXTRACT [] COPERNICIA CERIFERA (CARNAUBA) WAX\CERA CARNAUBA\CIRE DE CARNAUBA [] CERAMIDE 3 [] CHOLESTEROL [] TOCOPHEROL [] TOCOPHERYL ACETATE [] ASCORBYL PALMITATE [] SYNTHETIC BEESWAX [] POTASSIUM SULFATE [] BEESWAX\CERA ALBA\CIRE D’ABEILLE [] OCTYLDODECANOL [] ALUMINA [] CALCIUM ALUMINUM BOROSILICATE [] CALCIUM SODIUM BOROSILICATE [] TIN OXIDE [] SILICA [] OLEIC ACID [] PALMITIC ACID [] CETYL ALCOHOL [] GLYCERYL STEARATE [] ETHYLHEXYL HYDROXYSTEARATE [] VANILLIN [] [+/- MICA [] TITANIUM DIOXIDE (CI 77891) [] IRON OXIDES (CI 77491, CI 77492, CI 77499) [] BISMUTH OXYCHLORIDE (CI 77163) [] BLUE 1 LAKE (CI 42090) [] CARMINE (CI 75470) [] RED 6 (CI 15850) [] RED 6 LAKE (CI 15850) [] RED 7 LAKE (CI 15850) [] RED 21 (CI 45380) [] RED 28 LAKE (CI 45410) [] RED 30 LAKE (CI 73360) [] RED 33 LAKE (CI 17200) [] YELLOW 5 LAKE (CI 19140) [] YELLOW 6 LAKE (CI 15985) [] YELLOW 10 LAKE (CI 47005)]
Luxe Lipstick - Influential
INGREDIENTS: PENTAERYTHRITYL TETRAISOSTEARATE [] DI-PPG-3-MYRISTYL ETHER ADIPATE [] BIS-DIGLYCERYL POLYACYLADIPATE-2 [] MICROCRYSTALLINE WAX\CERA MICROCRISTALLINA\CIRE MICROCRISTALLINE [] OZOKERITE [] BARIUM SULFATE [] SYNTHETIC WAX [] CASTOR OIL/IPDI COPOLYMER [] TOCOPHERYL ACETATE [] ASCORBYL PALMITATE [] ASTROCARYUM MURUMURU BUTTER [] LECITHIN [] RICINUS COMMUNIS (CASTOR) SEED OIL [] LAURYL PCA [] ALUMINA [] POLYETHYLENE [] VANILLIN [] [+/- MICA [] TITANIUM DIOXIDE (CI 77891) [] IRON OXIDES (CI 77491, CI 77492, CI 77499) [] BLUE 1 (CI 42090) [] RED 6 (CI 15850) [] RED 7 LAKE (CI 15850) [] RED 28 (CI 45410) [] YELLOW 5 (CI 19140) [] YELLOW 6 (CI 15985)]
Lipstick (Frost):
INGREDIENTS: RICINUS COMMUNIS (CASTOR) SEED OIL [] TRIOCTYLDODECYL CITRATE [] GLYCERYL TRIACETYL HYDROXYSTEARATE [] SIMMONDSIA CHINENSIS (JOJOBA) SEED OIL [] EUPHORBIA CERIFERA (CANDELILLA) WAX\CANDELILLA CERA\CIRE DE CANDELILLA [] OCTYLDODECANOL [] BEESWAX\CERA ALBA\CIRE D’ABEILLE [] TRICAPRYLIN [] OZOKERITE [] COPERNICIA CERIFERA (CARNAUBA) WAX\CERA CARNAUBA\CIRE DE CARNAUBA [] CETYL RICINOLEATE [] MICROCRYSTALLINE WAX \CERA MICROCRISTALLINA\CIRE MICROCRISTALLINE [] TOCOPHEROL [] ASCORBYL PALMITATE [] CALCIUM SODIUM BOROSILICATE [] ALUMINA [] CALCIUM ALUMINUM BOROSILICATE [] TIN OXIDE [] SILICA [] VANILLIN [] [+/- MICA [] TITANIUM DIOXIDE (CI 77891) [] IRON OXIDES (CI 77491, CI 77492, CI 77499) [] BISMUTH OXYCHLORIDE (CI 77163) [] BLUE 1 LAKE (CI 42090) [] CARMINE (CI 75470) [] RED 6 (CI 15850) [] RED 6 LAKE (CI 15850) [] RED 7 LAKE (CI 15850) [] RED 21 (CI 45380) [] RED 28 LAKE (CI 45410) [] RED 30 LAKE (CI 73360) [] RED 33 LAKE (CI 17200) [] YELLOW 5 LAKE (CI 19140) [] YELLOW 6 LAKE (CI 15985) [] YELLOW 10 LAKE (CI 47005)]