Redken shades EQ

I was taught to rinse shades thoroughly and condition. I have never shampooed following a shades toner! I saw a post about an allergic reaction and can’t believe after looking that the manufacturer says to shampoo and conditioner following the service! Not only do I not shampoo, I tell clients not to shampoo for an additional 48 hours to ensure a lasting color, how I was instructed.

I’m planning to shampoo following each service going forward but am I alone in this??? I’m shocked. Thankfully, nothing has ever happened!