How to Use Silver Shampoo: 9 Steps (with Pictures) - wikiHow
5 Mistakes You're Making With Purple Shampoo - Behindthechair.com
L'Elegance A Salon - How often should I use my purple shampoo? 💭 1. Warm/natural blonde tones: every 3-4 washes 2. Silver + grey tones: every or every other wash (as needed!)