9 Best Eyebrow Growth Serums for Fuller-Looking Brows

This serum from Province Apothecary uses both argan and coffee to hydrate and condition existing brow hairs. The 30 ml bottle is about 10 times larger than some of the other serums on this list, meaning it will last a lot longer. Plus, "it smells great, like when you get an aromatherapy massage," shares one reviewer. Apply one to two drops onto cleansed brows, then wait five minutes to continue your skincare routine to ensure absorption. Just be mindful with the dropper, as some reviewers noted it can make it a little hard to apply.

Thanks to nourishing ingredients including glycerin, pro-vitamin B5, hyaluronic acid and arginine, this serum pen from L'Oréal Paris is designed to condition and hydrate hairs. Meant for lashes, it works well on eyebrows, too. Plus, we appreciate that it's gentle enough for those with sensitive skin and contact lens wearers. "It was super simple to use and didn't irritate my eyes at all," says one Walmart reviewer.

A pomade serum hybrid, this unique formula from Rose Inc. sets brows in place while conditioning and strengthening hairs. We love that it has the hold of a wax, so it really grooms eyebrows and lifts each hair when you apply. "It gives my brows a fuller and more combed through look, holds them in place without leaving any residue behind and they don't feel uncomfortable," says one reviewer on the brand's website. "The brush, however, does feel a little flimsy," she adds.

If you're a newbie to brow serums, try this option from CoverGirl, which is delivered in similar packaging to the brand's popular Lash Blast mascara. CoverGirl claims it's clinically proven to help your lashes appear longer in just a month. Ingredients include bamboo extract, biotin, peptides and castor oil, all of which can easily be combed through your brow hairs, which we know is super important. "I've been using it for about one month now and within days I saw results," shares one reviewer. "My eyebrows began to grow in places I've tried for years."

Milk Makeup's nourishing serum helps condition brows and lashes with hemp-derived cannabis seed extract. Plus, a plant peptide blend makes lashes and brows appear thicker while aloe, vitamin B5 and quinoa hydrate them. "It absolutely made a difference in fullness," shares one Sephora reviewer while another thinks "it has a great consistency." Just be careful when applying: some reviewers noted that it can sting or burn if it gets into eyes.

Japanese beauty brand Shiseido is known for its luxury makeup and skincare products, and this serum is a fan favorite. Dr. Garshick likes that it "provides benefits for both lashes and brows," and that the "doe-foot applicator is small enough to use on the lash line and between the lashes." Arginine is the key ingredient in this serum, which is known to help strengthen hair.

This lightweight and quick-drying formula utilizes the brand's proprietary TCF8 technology — which is used throughout all of their products to help deliver key nutrients and ingredients to skin cells — plus roselle and safflower extracts that help increase circulation to encourage regrowth and decrease hair loss. There's also biotin to help strengthen strands. According to a 12-week clinical study conducted by the brand with 60 participants, "lash length increased by 34% and lash and brow prominence increased by 130%." We love that it does double duty on brows and lashes and that it can be used under makeup as a primer.

This serum is made from rice protein, adenosine and peony root complex, a mix that the brand claims works to moisturize and strengthen the hair follicles and existing hairs. Additionally, in a consumer skin sensitization patch study funded by LashFOOD, which included 16 participants over 16 weeks, no testers reported any type of irritation as a result of using this product. Based on that data, our experts agree that makes it a great pick for those with sensitive skin.

Designed for thin brows and short or sparse lashes, this potent serum from Organys utilizes keratin peptides to enhance their appearance and botanical extracts (green tea, nettle root and saw palmetto) to strengthen weak hairs. The brand suggests using it twice daily for the maximum effect and "flipping the brush upside down for a second for the serum to soak into the brush and not to stay on its tip" before applying to get the most out of every last drop. "I love this product," says one Amazon reviewer. "I have been using it for a few months now and see growth in the spots that were basically bare!"