In all banknotes, specific features in the reverse of the banknotes are printed with bicolor fluorescent ink.
The fluorescent ink feature can be perceived by two colors on the F1-type 50-peso banknote, the G-type 200- and 500-peso banknotes, and on the 100-peso banknote commemorating the 1917 Constitution. The latter banknote also includes shining figures in the zipper-effect thread. On the G-type 100-peso banknote, fluorescence is perceived in four colors, while on G-type 50- and 1000-peso banknotes and on the 20-peso banknote commemorating the Bicentennial of Mexico’s Independence, it is perceived in three colors.
When the reverse of 100-, 200-, 500-, and 1,000-peso banknotes (F-type) is placed under black light, the 3-D thread glows.
Additionally, security fluorescent fibers in different colors are also included in both the obverse and reverse of all banknotes. These security fibers are embedded and scattered randomly over the paper substrate and can only be seen when the banknote is observed under black light.
20 pesos, G, commemorating the bicentennial of Mexico's Independence
20 pesos, F
50 pesos, G (current design)
50 pesos, F1
50 pesos, F
100 pesos, G (current design)
100 pesos, F
Images of the 100-peso banknote, belonging to type F
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100 pesos, F, commemorating Mexico's Constitution of 1917
Images of the 100-peso banknote, commemorative of Mexico's Constitution of 1917
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100 pesos, F, commemorating the beginning of the Mexican Revolution
200 pesos, G (current design)
200 pesos, F
Images of the 200-peso banknote, belonging to type F
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200 pesos, F, commemorating the beginning of Mexico's War of Independence
500 pesos, G (current design)
500 pesos, F
Images of the 500-peso banknote, belonging to type F
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1000 pesos, G (current design)
1000 pesos, F
Images of the 1000-peso banknote, belonging to type F
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