KilgourMD Accelerates R&D Pipeline in Scalp Health with Series A Funding

KilgourMD, the dermatologist-founded scalp health and hair growth brand, says it’s committed to accelerating its R&D pipeline in scalp health.

The brand has closed a Series A funding round led by Prelude Growth Partners, a New York-based growth equity firm investing in high-growth, founder-led consumer brands across health and wellness, beauty and personal care.

The round included participation from existing investors Willow Growth, Joyance Partners, and Able Partners for the brand founded in 2023 by Stanford-trained, board-certified dermatologist Dr. James Kilgour.

Proceeds from the Series A will be used to expand KilgourMD’s proprietary active ingredient pipeline, develop new product formulations and conduct rigorous clinical trials targeting underserved populations in hair loss.

“KilgourMD was born out of seeing firsthand the experience of my mother, as well as countless patients, struggling with hair loss during menopause,” said Dr. James Kilgour. “I developed our clinically proven scalp serum system to address this unmet need, and today we sell a bottle every 20 seconds. Prelude Growth shares our vision for redefining scalp health, and I’m excited to partner with them as we scale our clinical and product innovation.”

Meaningful Regrowth

The funding follows a profitable 2025 and the successful completion of the brand’s first clinical trial focused on menopausal women using its proprietary two-step scalp serum system. In the study, 95% of participants demonstrated decreased shedding on objective measures within six weeks, and by four months, the majority achieved clinically meaningful regrowth, as evaluated by two independent board-certified dermatologists. The full results of the trial have been accepted for publication in the Journal of Drugs in Dermatology.

Prelude Growth Partners’ Managing Partner Alicia Sontag will join the company’s Board of Directors alongside Dr. Kilgour; managing partner of Willow Growth and series seed lead investor Deborah Benton; and Chief Creative Officer Dr. Alok Prasad.

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