Rivaled perhaps only by Birchbox, Amazon never ceases to amaze us with its under-the-radar beauty gems—and oftentimes, these products already have devout followings by the thousands by the time we're alerted to their existence. Case in point: The numbers are in for the online marketplace's top-selling products of 2016, and the number two slot goes to a shampoo that we've never heard of. But nearly 9,000 positive reviews can't steer us wrong, right?
The product in question is Pura d'Or's Anti-Hair Loss Premium Organic Argan Oil Shampoo ($33). Thanks to a hefty dose of ultra-hydrating argan oil, this shampoo isn't just effective for thickening fine strands—it can moisturize, fortify, and add shine and body to just about any hair type. All that and it's also free of preservatives and harmful chemicals. (And it's gluten-free to boot.)
"I don't think I've ever stuck with one product for so long," says reviewer Sally B., adding that she saw a marked difference in her thinning hair in as little as three months. "My hair has never been so shiny and silky," chimes in reviewer Stacey B.
Reviewers also note that since the formula is so gentle, it works particularly well in restoring color-processed hair to its most vibrant state. Either way, you can consider us convinced.