The Best Hair Growth Products of 2024

Rice water rinses can be helpful, Henry says; the protein-rich ingredient increases the strength of hair, hydrates, and reduces breakage. It’s easy (and costs pennies) to make your own version of this traditional Japanese treatment: Soak half a cup of uncooked rice in two cups of water for 24 hours. Strain out the rice, then pour the water on clean, wet hair and let it soak for at least 10 minutes; then rinse. Or you can also find rice water in your haircare: “That might be the route to go—it’s convenient and likely has additional ingredients for more hair health benefits,” Henry says.

“There are studies showing that rosemary oil can be equivalent to 2 percent minoxidil,” Henry says. She recommends using 100 percent organic rosemary oil rather than haircare formulas that contain some rosemary oil. “We don’t know the true concentration of rosemary oil in those,” she explains. Add a few drops of rosemary oil to a carrier oil (like argan or castor oil), and apply the blend to your scalp daily.

For a quick way to make hair appear fuller, celeb hairstylist Laura Polko likes this new styling spray. It hydrates and plumps strands without weighing them down. “I recommend using this after the UltraFiller+ shampoo and conditioner; they’re all amazing,” Polko says.

Unlike rosemary extract, castor oil doesn’t have data supporting its hair growth benefits, Henry notes, but it does have scores of social media fans who say that its nourishing fatty acids have made a difference. Besides using it as a one-hour scalp treatment, you can brush it through lashes and brows—and it makes a great carrier for your rosemary oil.

“I recommend this supplement to my patients,” says Henry. It helps spur your body to generate its own collagen, elastin, and keratin, the protein that’s the primary component of hair.

Strengthening products have biotin or proteins in them that give the hair more durability so it can continue to grow, says Henry, who shares that this leave-in treatment is one of her favorites. It’s ideal for relaxed or permed hair; just spray it on clean, towel-dried hair.

This bonding treatment, which you leave on damp hair for 10 minutes before shampooing, helps repair and strengthen brittle, weak strands so they won’t snap off as easily. It’s made for dry, damaged, or color-treated hair.

You can skip scalp scrubs, massagers, and rollers (“The scalp doesn’t need aggressive exfoliation,” Henry says). But if you have long hair and it’s hard for you to get your serums down onto your scalp, then do spring for this nifty and sensational-feeling applicator. “There’s a great peptide serum that you can add into the container [which is sold separately]; put minoxidil in there, too,” Finney says.

A hair laser is an investment up front, but it does last for years. “Light therapy has 20 years of studies showing that it can stimulate hair follicles,” Finney says. “You want diodes in the 620-678 nm range, and you want to make sure that they reach the scalp. This comb helps you do that.”

This daily serum helps to make strands healthier and stronger—and is under ten dollars. Peptides and zinc fortify roots while vitamin B3 and glycerin hydrate and balance the scalp, making it the ideal environment for growth.