All of the following results can be achieved in the use of demi-permanent color EXCEPT?

Demi-permanent color is designed to provide a range of benefits in hair coloring without the commitment of permanent dyes. This type of color is known for its ability to enhance natural color, add shine, and create darker tones, making it a versatile choice for clients. It typically doesn't contain ammonia and allows for a more subtle color change that can generally last up to 20 shampoos, which is useful for those seeking temporary alterations.

While demi-permanent color can help blend and camouflage gray hair, it may not offer complete gray coverage, especially for those with a high percentage of gray. The pigments used in demi-permanent formulations penetrate the hair shaft but do not alter the natural pigment as thoroughly as permanent hair color does. Therefore, while it may reduce the visibility of gray hair, it is not designed to provide full coverage. The focus of demi-permanent colors is more on enhancing and enriching existing color rather than completely covering gray strands.