Goldwell Colorance line used to have a regular lotion and an intensive lotion. The intensive lotion was to be treated as if it was a permanent color. The regular lotion used to be called "semi-permanent" because it was a mild lotion; however, because there is hydrogen peroxide in the lotion, it really has always been a demi-permanent color.
Now, the new formulas of the Goldwell Colorance line has "Intralipids" to assist in hair repair. They all have "Demi-permanent" listed on them. This cuts down on the confusion. Semi-permanent haircolor should not have any mixing at all.
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