This has been my go to shampoo for my curly hair for years. I have just started a new bottle but the shampoo looks different and is leaving my hair flat and lifeless. The blurb on the bottle suggests it is a new formula. Am I right in thinking this is the only curly hair shampoo Aussie produces i.e I haven't bought the wrong one. If so, can anyone suggest a different curly hair shampoo I can try?