GelColor OPI GelColor is ideal for clients looking for a quick service that offers performance with up to 3 weeks of shine-intense wear and stay-true color. OPI's professional gel polish system is designed to be cured with the OPI Dual Cure Light and fully cures from foundation to finish in 4 minutes per set. Choose from 140+ shades or find your favorite OPI Lacquer shade perfectly matched in GelColor. 3 STEP GELCOLOR SYSTEM GEL COLOR BASE COAT 22001155000 GC 010 Original long wear foundation for GelColor services. GEL COLOR TOP COAT 22001156000 GC 030 Original Top Coat provides a high shine finish. TOP COATS with technology GEL COLOR MATTE TOP COAT 22002252000 GC 031 Transforms glossy colors to a satiny finish. DUAL CURE LED LIGHT 22777803000 GL902-US Designed for optimum performance and client comfort.