The 17 Best Hair Growth Serums of 2023

With that distinction, Hill also wants to highlight the benefits of using a hair loss prevention serum and how strands become thinner in the first place. “What is being experienced with ‘hair growth’ serums is the reawakening of the hair follicle,” says Hill. “It creates a healthier scalp microbiome, which increases the numbers of hair fibers that each follicle produces. To clarify, each hair follicle can produce multiple hair fibers and most people can have two to five hair fibers per hair follicle. (This is genetically predetermined.) As the follicle is compromised, the follicle produces fewer hair fibers, which results in ‘hair loss’ and thinning. The benefit and goal of these serums is to address miniaturization in its infancy stages for the best results.”

Even if hair loss isn’t a concern for you and you simply would love a serum to help promote long, luscious locks in some way, you can still look for hair strengthening serums containing ingredients that help keep breakage at bay. Hill recommends looking for hair products containing ingredients like saw palmetto, caffeine, licorice extract, pfaffia extract, ergothioneine, ginseng root, and burdock root. These will help nourish your hair at the root so strands have the opportunity to grow longer than ever before. Keep scrolling below for a few options recommended by Hill and other user favorites.