Do you ever get a build up on your hair? I don’t use styling products on my hair, but I do use heat resistors and oils to keep it healthy. These all build up on the hair over time and until you use a shampoo like this one from Kiehls you don’t realise just how much. Every two weeks I wash with this amino acid shampoo to remove any product build up from my hair. My hair feels so light after. It is brighter and has a new lease of life. It has a fabulous smell of coconut and is kind to your colour. Another tip is to try to avoid conditioner but instead use a treatment oil after washing. Conditioner can also build up on hair over time making hair dull and lifeless. A treatment oil I recommend is from the Aveda range. Pop into House of Fraser where they will be happy to help and sample products when you mention Tried and Tested.