If You Want to Transform Your Brows, These Growth Serums Are Your Ticket


(Image credit: @salemmitchell)

If you've ever desperately punched the words "eyebrow transplant" into Google, you've come to the right place. (Yes, the procedure is actually a thing.) Whether you were born with naturally thin eyebrows, have noticed an uptick in thinning as you've gotten older (this is natural and normal), or fall into my personal boat and were born with thick, perfectly satisfactory brows only to sabotage them with a pair of tweezers in the early aughts, the best eyebrow growth serums can work wonders in the lengthening and thickening departments.

Of course, results will vary from person to person. Consistency and patience are everything when it comes to these types of products, but non-prescription brow growth serums have come a long way in recent years. Many brands have formulated their own exclusive technology and ingredient blends—most of which contain potent botanicals, peptides, antioxidants, amino acids, vitamins, and strategic moisturizing agents to make the environment of the eyebrow area healthier and more conducive to new and accelerated hair growth

You probably already know where I'm going here, but not all eyebrow growth serums are made equally, and it's important to choose formulas that not only are efficacious but also contain high-quality ingredients that won't cause unwarranted irritation or sensitivity. (Trust us—we've seen our fair share of super-sketchy options out there.) Luckily, we totally have your back, and we're listing 12 of our all-time-favorite eyebrow growth serums below that have the ratings, reviews, and ultra-loyal cult followings to back us up. Keep scrolling! 


(Image credit: @amaka.hamelijnck)

What to Look for in a Brow Growth Serum

Geeta Yadav, MD, is a board-certified dermatologist at Facet Dermatology. She says brow growth serums work by extending the growth cycle of the eyebrow hairs. "There are four phases in the growth cycle: anagen, or growth phase; catagen, the phase when growth slows and hair separates from the follicle but stays put; telogen, when the hairs rest within the follicle and are neither growing nor shedding; and exogen, the shedding phase," she explains. "Growth serums extend the length of the anagen phase, which gives the hairs more time than usual to grow. These products will be the most effective, though some eyebrow growth serums simply use nourishing ingredients that promote blood circulation, which can support a healthier hair follicle and better growth." 

What should you look for in a brow growth serum? The most commonly used ingredients are prostaglandin analogs like isopropyl cloprostenate, castor oil, saw palmetto, red clover, and vitamin B3, according to Yadav. As for ingredients to avoid, Yadav says that's trickier and depends on the level of risk you want to take: "Plants and vitamins are perfectly safe, though there are a few people who could experience sensitivity to castor oil. Prostaglandin analogs can have some unwanted side effects, especially when they're formulated into lash/brow growth serums. These include irritation, discoloration/hyperpigmentation, and permanent fat atrophy, which accelerates the appearance of aging." Simply put, it's important to do your research and invest in a tried-and-true formula. 

Best Overall Eyebrow Growth Serum: Twenty/Twenty Beauty Get Growing Lash & Brow Serum

Shop Eyebrow-Enhancing Makeup Products We Love

Kaitlyn McLintock
Associate Beauty Editor

Kaitlyn McLintock is an Associate Beauty Editor at Who What Wear. Although she covers a wide range of topics across a variety of categories, she specializes in celebrity interviews and skincare and wellness content. Having lived in Los Angeles and Austin, Texas, she recently relocated back to her home state of Michigan where she works remotely. Prior to Who What Wear, she freelanced for a variety of industry-leading digital publications, including InStyle, The Zoe Report, Bustle, Hello Giggles, and Coveteur. Before that, she held a long-term internship and subsequent contributor position at Byrdie. When she's not writing, researching, or testing the latest and greatest beauty products, she's working her way through an ever-growing book collection, swimming in the Great Lakes, or spending time with family.