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Confused about hair color rinses? There are two types -- temporary and semi-permanent. Temporary rinses coat the hair and only last until the next shampoo, so no maintenance is required. Semi-permanent rinses actually penetrate the cuticle and last for 6 to 12 shampoos. If you have opted for the semi-permanent rinse, you will need to be extra kind to your hair. Although a semi-permanent rinse is not as damaging as a permanent dye, it can still cause dryness, so show your locks some tender loving care.