Hello there Malin! 🥰
You can wash your hair before the keratin treatment with a clarifying shampoo, but avoid color treatments right before. If you use a color treatment just before the treatment, the pigment from the treatment can affect how the keratin adheres, which can lead to uneven results😊
Wait at least 1-2 weeks after the keratin treatment before using a color treatment. This gives the keratin time to set and reduces the risk of the color not adhering or affecting the treatment 🥰
Take care 🤍