If you’ve got naturally fine hair or have experienced severe hair thinning, then you’re a prime candidate for the best hair-thickening shampoos. These are products formulated to gently cleanse the hair and scalp while boosting volume and definition simultaneously (and all without overdrying your strands, to boot). This isn’t a one-size-fits-all game, though, says celebrity hairstylist Andrea Claire. “It’s important to understand your specific hair cleansing needs,” she says. “Is it just a simple fine or thinning hair situation you want to fix? Because if you add in other variables, like curly or textured hair, color-treated hair, damaged hair, then the answer isn’t so black and white.” The way many “thickening” shampoos work is by swelling the hair shaft, according to Claire. Ingredients such as chia seed and quinoa proteins flood each shaft, making every strand look plumper. Multiply that by all the hairs on your head, and your mop suddenly..
