Hi ElvishThistle - with the green one, I meant the brand-new one in the OPAQUE lime-greenish bottle. Since I haven't tried this yet, I don't know what color the gel is. However I do remember the old emerald green one, the Mega Gel, which is the first one I started off with years ago until they redid the line and the bright turquoise Curl Look Gel came out. I do know what you mean about the colored gels temporary effect on haircolor though, usually immediately after application. Once dry however no effect. In fact, color in my case looks RICHER.