Clinical Study Shows Nutrafol Hair Growth Nutraceuticals Improve Hair Growth in Women

A new peer-reviewed prospective clinical study published in Dermatology and Therapy further supports the efficacy of Nutrafol’s Hair Growth Nutraceuticals. Results showed statistically significant improvements in hair growth rate, hair count, scalp coverage, and other objective measures of hair health in women, the company noted.

The study evaluated linear hair growth rate (LHGR), a technically challenging, high-value endpoint that has been infrequently studied in hair research, measuring how quickly hair grows, Nutrafol said.

The findings were first presented in Seoul, South Korea at the 2026 World Congress for Hair Research (WCHR), where researchers and clinicians showcase the latest advancements in hair biology and clinical science.

The 6-month study evaluated 180 women between the ages of 18 and 70 using one of Nutrafol’s Hair Growth Nutraceuticals, tailored to their unique life stages, such as menopause and postpartum, and lifestyles. Over the study period, participants demonstrated statistically significant improvements in LHGR, with hair growth rates 19% to 37% faster compared to baseline.

“Measuring linear hair growth rate is rarely done in clinical hair research because the technical demands are significant; you need to have the right type of validated equipment, and many therapies simply don’t measure or report it,” said Dr. Raja Sivamani, MD, MS, AP, board-certified dermatologist and principal investigator. “That’s what makes this data stand out — it is the kind of finding that should shift how the field evaluates approaches to assess hair thinning and hair health.”

In addition to faster hair growth, results demonstrated statistically significant increases in anagen (actively growing) hairs across all study groups, while also confirming prior clinical evidence tied to total hair count, terminal hair count, and overall scalp coverage. Participants’ self-assessments also reflected improvements consistent with the clinical findings.

“We don’t just invest in clinical research; we invest in studying the endpoints that matter most to physicians and consumers, even when they’re technically challenging to measure,” said Dr. Isabelle Raymond, senior vice president of global medical and clinical affairs at Nutrafol. “This study strengthens the clinical evidence supporting our Hair Growth Nutraceuticals, reinforcing the efficacy of our final formulations in helping women across life stages achieve healthier, faster-growing hair. It also reflects our continued commitment to advancing the science of hair health through meaningful, objective endpoints that help set a higher standard for the category.”

Nutrafol has now completed 26 clinical studies, including three randomized, placebo-controlled trials, evaluating its formulations across multiple life stages and hair wellness needs.