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Editor’s Note: This story originally appeared on The Penny Hoarder. Shampoo is the simplest toiletry that can make a big impact. Whether you’ve got curly hair, oily hair, natural hair, or color-treated hair, you need something that’s going to boost your texture and look without breaking the bank. That’s where a good and cheap shampoo comes into play. Don’t assume that a shampoo has to be expensive…