Is Paul Mitchell Extra-Body Shampoo the Best Body Shampoo for Fine Hair?

How Paul Mitchell Extra-Body Shampoo actually adds volume

Here's the mechanism worth digging out from under the apple scent. Panthenol, pro-vitamin B5, is small enough to slip inside the hair shaft instead of just sitting on top of it. Once inside, it draws in a little water and swells the fiber slightly, and that's what your fingers register as thickness, not more hair, just a fatter strand doing more work per follicle. That's the actual trick behind body: micro-swelling, not magic.Wheat-derived proteins handle the second job. They're too large to get inside the shaft, so they sit on the outside instead, patching over lifted or roughened cuticle scales the way spackle fills a crack. Patched cuticle lies flatter and reads as smooth instead of frizzy, without the heaviness a silicone coating would add. That's the trade this formula makes: less weight, more lift, at the cost of a rich, thick surfactant base.Which explains the other thing you'll notice at the sink, that it doesn't foam like a drugstore bottle. Gentler cleansing agents are chosen on purpose here, because harsher ones would strip away the very swelling and coating the panthenol and wheat protein just built. Thin lather is the formula keeping its promise, not breaking it, though it does mean working a bit more through before it feels like it's cleaning.