Level 7 Copper (/4)

Each brand uses its own naming system. For example, a level 7 copper is 7NRG in Anti-Aging Permanent Liqui-Creme, 7.4 in Evolution of the Color, 7K in Topchic, KB@7 in Elumen, 7NC in LumiShine Permanent Creme Color, 7C in Permanent Color, 7.44 in Color System, 7.4 in Majirel, 7.4 in Dia Light / Dia Color, 7.4 in INOA, 7C in The Color, 7C in The Color XG, 7.4 in ChromaSilk, 7-4 in FACTION8 Permanent Color, 07C in Shades EQ Gloss, 7CR in Chromatics, 7NCr in Cover Fusion, 7.4 in Revlonissimo Colorsmetique, 7,4 in Salermvison, 7-7 in Igora Royal, 7-77 in Igora Vibrance, 7-70 in Igora Royal Absolutes, 7-77 in Igora Zero Amm, 7WR in Color Charm Permanent Liquid, 7.4 in Yellow Color. Although codes differ, they all represent the same level and reflect.

Level and reflect equivalences are a useful reference, but not identical. Each brand has its own chemical formulation, pigments and technology. Two "equivalent" codes will produce similar but not identical results. Factors like natural base, porosity and color history affect the final outcome.

Generally yes. If you maintain the same level and reflect, the result will be very similar. However, a strand test is recommended when switching brands for the first time, as formulation differences can produce slightly different nuances.