Best Shampoo/Conditioner to use for red dyed hair?

I have red coloured hair and at the moment im using RedKen Colour Extend shampoo and Palmolive Intense Moisture conditioner. I know that the conditioner is not what i should be using and im finding that the shampoo is also stripping the red out of my hair quickly aswell. I am also aware that bright colours dont last very long and have changed hair dye the red Splasher LISAP at a different hair salon, it has held far longer than the other dye. Im mostly looking for a red coloured shampoo and possibly conditioner otherwise a clear one, are there any that are strongly recommended????