Others say it makes "straw" hair feel “soft and lush.”Credit: Getty ImagesThe GistOver 30,000 people purchased the CeraVe Gentle Hydrating Shampoo on Amazon last month. One shopper says the hyaluronic acid-infused formula makes their hair feel “smooth, silky, and like it has already been conditioned.”Shop the sulfate-free shampoo for just $13 and other CeraVe hair products on Amazon, such as the $10 Hydrating Anti-Dandruff Shampoo and $9 Gentle …