'Shampooing lifts the cuticle and the conditioner is important to reseal and protect the hair shaft.' Pictured: stock image'It may be a weak tint where the colour only lasts six to 12 washes, but the altering of the hair shaft structure is permanent until new hair grows through to replace it. It costs £19.50 - £29.50 depending on what size you buyWhen balanced, sebum can help the hair look soft and shiny. 'This clogging of the hair follicles over time can lead to a thinning and loss of the hair,' Michael said. 'Damage usually starts with dehydration which leads to a brittle fragile hair shaft which then leads to loss of protein structure and thinner hair strands.

Source: Daily Mail October 02, 2019 15:11 UTC