A keratin treatment leaves your hair smooth and shiny. To make the effect last for months, you only need to follow a few rules in the days after your treatment.

The first days

- Do not wash your hair for the first 3 days. - Avoid tying your hair tightly with clips, hair ties or hats, as they can leave marks. - Avoid tucking your hair behind your ears.

The following weeks

- Use a salt-free and sulphate-free shampoo. - Rinse your hair with clean water after swimming in the sea or a pool. - Apply a moisturising mask once a week.

If you follow these rules, the keratin effect usually lasts between 3 and 5 months. This can vary depending on your hair type and care routine.