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What is the difference between a'semi-permanent' and 'permanent' hair color?
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A semi-permanent hair color is one that lasts for several months, while permanent hair color will last up to two years. Semi-permanent hair colors are typically more affordable than permanent hair colors, but they can be difficult to remove or change if you're not careful. Permanent hair colors tend to be more expensive, but they offer greater versatility in terms of how long they stay on your hair.