I have just had balayage done, I've got naturally medium/ dark brown hair and I've had some blonde put in, photo for ref.
I want to maintain it for as long as I can , I asked for balayage so I dont need to have it regularly coloured and potentially damage my hair. The hairdresser suggested I use a purple shampoo but she didn't suggest a particular brand
So I'm looking for purple shampoo recommendations please! Also would it be best to use a purple conditioner too, or does that not matter? Any other tips to keep the blonde bright and not brassy?