The 12 Best Hair Thickening Serums, Hands-Down
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We asked a PhD scientist and certified hair practitioner for what you need to know about hair-thickening serums. Keep reading for her recommendations.
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The 12 Best Hair Thickening Serums, Hands-Down
![](https://cdn.mos.cms.futurecdn.net/whowhatwear/posts/298724/best-hair-thickening-serums-298724-1647996985223-square.jpg)
The 12 Best Hair Thickening Serums, Hands-Down