Marc Anthony’s Grow Long Super-Fast Strength Shampoo, at Amazon for $7. $9 Others noticed inches of growth, too. When it comes to hair-growth products that actually work, anecdotal evidence ...

We’re not surprised that Paltrow is such a fan of the Marc Anthony Strengthening Conditioner. But what do shoppers have to say about this hair care product? Take a look at some of the glowing ...