I have just done a Keratin straitening treatment and need to find the right products to ensure it lasts! What shampoo do you use?
There has been a similar thread in 2014 and some people recommended Tresemme, but it is not sulphate and salt (sodium) free anymore. Any recommendations?
(I found most of the information about ingredients in this website www.botoxforhair.net/keratin-treated-shampoo , no idea if it is reliable but it is certainly thorough)