The Urban keratin Kit allows Brazilian straightening for soft, smooth and shiny hair for a long life. It is a smoothing treatment based on organic keratin that can get rid of frizz, makes hair smoother and easier to style for a silky result for 3 to 5 months. The Urban keratin treatment is made from keratin nanoparticles, which repair permanently and deeply damaged hair by attaching to the cortex of the hair. It complies with European standards and contains neither formaldehyde nor glutaraldehyde. This kit contains everything you need to achieve a Brazilian straightening in good and good shapes: 1 x clarifying shampoo 100 ml, 1 x keratin straightening treatment 100 ml, 1 x keratin shampoo 100 ml, 1 x keratin treatment with 100 ml. Conditioner #4 makes hair easier to make. Bathrobe. The treatment can lead to changes in hair colour if they have recently been exposed to colouring or discolouration. In this case, carry out the treatment 7-10 days after dyeing or discolouring. The care shampoo #3 and the care conditioner #4 Urban keratin are essential to use for the care of keratin smoothing.