Best Shampoos For Every Hair Type at Walmart
Need New Shampoo? Shop the 13 Best Formulas For Every Hair Type — All For $11 or Less
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Reviewers rave that OGX Thick & Full + Biotin & Collagen Volumizing Shampoo for Thin Hair ($6) is a must-have for those with flat, thin strands. It's infused with vitamin B7, biotin and collagen — all of which work together to strengthen your locks and add volume and thickness.