Thanks to heat styling, colour and environmental aggressors like UV and pollution, once-shiny, healthy hair can appear dull, dry and damaged. That’s exactly why bond-building treatments – adored by hairstylists and colourists alike – are in such high demand.
Eva Proudman, a consultant trichologist and founder of UK Hair Consultants, explains that hair is made up of three types of bonds: hydrogen (easily broken by water and heat), salt (sensitive to water and harsh shampoos) and disulphide bonds (disrupted by chemicals like hair dye and bleach, as well as relaxers and heat). “When these bonds are damaged, it can lead to split ends and breakage,” she says, leaving hair feeling parched and looking frizzy.
