L'Oréal Professionnel Metal DX — colour protection before the colour work

The shampoo and mask cleanse hair down to the molecular level, so a new colour treatment takes more evenly and stays vibrant for longer. Going into summer, with sun, chlorine and salt water in the mix, that's exactly the difference between colour that fades and colour that holds. Especially with hard tap water — the norm across much of the Netherlands — metal particles build up faster than you'd expect, even without a single dip in the pool. Glicoamine and ionene capture those particles before they can bond to the hair fibre, rather than rinsing them out after the damage is done. The shampoo slots straight into a normal wash routine, with the mask added once a week for hair that's already colour-treated. It's not a dramatic overhaul of your care routine — just one that stops a freshly refreshed colour from fading again within a few washes.