So we have all heard the tips and tricks on how to make your colour last longer, but how exactly do they work? To understand how these tricks of the trade can improve your colour permeability we must first understand how manic panic and other semi-permanent hair dyes work to colour your hair.
People have been dying their hair for thousands of years using natural products such as plants and minerals which contain natural pigments and even natural bleaching agents. Semi Permanent hair colours such as manic panic do not actually change the natural colour of your hair too much as they do not contain harsh chemicals such as ammonia or peroxide. These hair dyes (usually plant-based) consists of tiny molecules that enter your hair through the cuticle and with every wash these tiny molecules exit the hair the way they came, leaving your hair as it was before.
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