Anyone have great tips or treatments I can do for healthy, shiny hair?

I moved to a place that has very hard water and I bought hard water shampoo that has helped, but I have not been able to get it back; it's still a bit dull. I know it sounds easier to fix the water, but I don't have the money for that yet so it'd be cheaper to start with the hair.
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Anyone else?
Anyone have great tips or treatments I can do for healthy, shiny hair?
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