What goes on before and during your color service is just as important as what comes after. Using correct high quality products are very important. Avoid products from drugstores or third party companies such as Amazon, those products are diluted or tampered with. Only buy directly from the source or through an authorized salon retailer. Products that are color safe or and also pH-balanced focus are ideal. No sulfates! Products that are sulfate free will prove to enhance and extend the life of hair color. Porous hair will also cause fast color fading due to open or blown out cuticles in the hair shaft.