The 32 Best Hair Growth Shampoos of 2024, According to Experts

Rapunzel hair, coming right up.

collage of hair growth shampoos including Redken, Kerastase, Shea Moisture
(Image credit: Future)

When you desperately want longer hair, looking in the mirror can get discouraging and waiting can feel like an eternity. Thankfully, there are steps to speed up hair growth beyond using your favorite run-of-the-mill shampoos and conditioners, such as taking nourishing hair growth vitamins, trying hair growth oils, and incorporating one of the best hair growth shampoos into your wash day routine.

Hair growth products, including shampoos, nurture a healthy scalp that supports and stimulates hair growth. Not all products have a place in your lineup, however. Specific ingredients may be best suited to your hair type and concerns—and all these shampoos, conditioners, and oils are only part of the picture. Building all-around healthy habits can also contribute to growing longer, more luscious hair.

To get started, Marie Claire tapped several haircare experts for insight into the products they and their clients use for hair growth results. Whether you’re trying to grow out a short haircut, or you're dealing with hair loss, you’ll find the best hair growth shampoo for reaching the length of your dreams ahead. 

What To Look For, and Avoid, in a Hair Growth Shampoo

Board-certified dermatologist Dr. Jerry Shapiro recommends natural ingredients like vitamin B3 and castor oil. Furthermore, he encourages buyers to find formulas that incorporate caffeine and niacinamide. "Caffeine reverses the effects of dihydrotestosterone (DHT), the main hormone involved in hair loss. It is also known to increase blood circulation to the scalp and extend the anagen phase," he explains. "Niacinamide is a form of vitamin B3, an essential nutrient that supports many cellular processes. It also plays an essential role in preventing inflammation."

Meanwhile, fellow dermatologist Dr. Shani Francis recommends avoiding hair growth shampoos with harmful sulfates that can strip your hair of the natural and essential oils that it needs. Sulfate-free shampoos cleanse without lathering, so they're gentle on hair. Other ingredients to avoid? Parabens, silicones, and phthalates.

All three chemicals are commonly found in haircare products—and can send your hair growth journey in the wrong direction. "Parabens are preservatives that have been proven to mimic estrogen and disrupt the delicate hormonal balance," explains Dr. Shapiro. "Sulfates usually dry or irritate the scalp and skin. Methylisothiazolinone (MI) is a preservative to avoid bacterial growth, but is a potent allergen. Phthalates are hidden in fragrances, but they are endocrine disruptors."

Dr. Antonella Tosti, a Professor of Dermatology and Cutaneous Surgery at the University of Miami, also emphasizes the importance of taking care of one's scalp and hair follicles. She warns to steer clear of the preservative MCI/MI (Methylchloroisothiazolinone/Methylisothiazolinone), "which can cause scalp inflammation and hair loss." She also advises avoiding UV filters, including titanium dioxide nanoparticles and oxybenzone/benzophenone.

Can Shampoo Make Your Hair Grow?

Yes, the best hair growth shampoos can speed up your lengthening process. There are other practices you should consider adopting in pursuit of longer, healthier hair. Dr. Shani Francis, board-certified dermatologist and member of DevaCurl’s Expert Curl Council, says that supplementing a hair growth shampoo with a diet rich in omega-3s, fiber, sulfur ("our hair has a lot of sulfur in its internal structure"), and protein will really speed up the process. Foods like lean meats, leafy greens, nuts, beans, and fish fit the bill. 

Most importantly, make sure you drink a lot of water. Francis recommends two liters a day if you want to see results.

Best Hair Growth Shampoos for Straight Hair

Best Hair Growth Shampoos for Natural and Curly Hair

Best Hair Growth Shampoos for Thinning Hair

Best Hair Growth Shampoos for Scalp Health

Why Isn't My Hair Growing Quickly?

Many factors can contribute to hair not growing as quickly as you'd hope. Most roads lead back to your overall health and habits. Dr. Antonella Tosti, a Fredric Brandt Endowed Professor of Dermatology and Cutaneous Surgery at the University of Miami and President of the American Hair Research Society, points out that androgenetic alopecia—the most common cause of hair thinning in young women—"is often precipitated or aggravated by environmental factors that cause increased hair shedding." Those can include everything from systemic disorders to medications and crash diets.

Dr. Jerry Shapiro, a dermatologist at the New York University School of Medicine who specializes in hair loss, adds that "stress is one of the main causes in young adults, and causes telogen effluvium (large number of follicles in resting phase)." Diets low in iron, zinc and Vitamin D, or low-calorie or protein-heavy diets, can also be responsible for hair loss, he says. In addition, "medications for acne containing vitamin A, antibiotics, antidepressants, birth control pills, steroids, and weight control pills can also produce hair loss." 

Both Dr. Shapiro and Dr. Tosti advise patients to keep an eye on their central part line—if you notice a gradual widening of the line, your hair could be thinning. And if you're thinking of taking supplements to get the necessary nutrients, just don't overdo it. "What some people don’t realize is that most hair, skin, and nail supplements are multivitamins," Dr. Francis explains. "As with anything, balance is key."

Meet the Experts

Board-certified dermatologist Dr. Shani Francis
Dr. Shani Francis

Dr. Shani Francis is a board-certified dermatologist and medical research executive. She is also a member of DevaCurl’s Expert Curl Council and holds appointments on the American Academy of Dermatology's Advisory Board and Performance Measurement Committee. With a background in biochemical engineering, clinical trial research, and product development, she is especially concerned with inflammatory skin diseases, skin cancer, holistic medicine, hair loss, and health delivery systems.

Dr. Antonella Tosti
Dr. Antonella Tosti

Dr. Tosti is a Fredric Brandt Endowed Professor of Dermatology and Cutaneous Surgery at the University of Miami and President of the American Hair Research Society. She received her education at Università de Bologna Facoltà di Medicina e Chirurgia and is currently based in Miami, Florida.  She is an expert on hair and nail disorders. 

Dr. Jerry Shapiro
Dr. Jerry Shapiro

Dr. Shapiro is a dermatologist at the New York University School of Medicine who specializes in hair loss and combatting both and female- and male-pattern hair loss. He is particularly committed to finding healthy, nonsurgical methods of fighting hair loss and thinning.

Takisha Sturdivant-Drew
Takisha Sturdivant-Drew

Takisha Sturdivant-Drew has been a celebrity hairstylist for over 20 years, having worked with Annie Leibovitz, Marc Baptiste, Kerry Washington, Gabrielle Union, Ashley Graham, Yvonne Orji, Lucy Liu, Naturi Naughton, Mary J. Blige, Gina Torres, Margarita Levieva, and more. She also owns Takisha Studio in Brooklyn, New York, and TSD Hair Extensions.

Dr. Rachel Nazarian
Dr. Rachel Nazarian

Rachel Nazarian, M.D., is a board-certified dermatologist  and a Fellow of the American Academy of Dermatology. She completed her medical degree at the Tulane University School of Medicine and is currently a faculty member at Mount Sinai Medical Center’s Department of Dermatology and a member of the Schweiger Dermatology Group. She has been published in a number of peer-reviewed medical journals, has contributed to dermatological textbooks, and is an expert in cosmetic treatments, skin cancer, general dermatology and dermatologic surgery.

Kendall Dorsey
Kendall Dorsey

Kendall Dorsey is a celebrity hairstylist who has styled a number of high-profile stars, including Saweetie, Kelly Rowland, Teyana Taylor, Cardi B., and Bella Hadid.

Michael Duenas
Michael Dueñas

Michael Dueñas is a celebrity hairstylist based in Los Angeles. He has worked with Illana Glazer, Rachel Brosnahan, Noah Cyrus, Padma Lakshmi, Morena Baccarin, Petra Nemcova and Mary Elizabeth Winstead. In addition, he has worked with a number of magazines and fashion houses, having partnered with Michael Kors, Carolina Herrera, Oscar de la Renta, Victoria’s Secret, Alice and Olivia, Betsey Johnson, Trina Turk, Nicole Miller, Charlotte Ronson and more. He is also particularly passionate about and experienced in working with curly and textured hair.