After more than 30 years in medical research and clinical practice, Dr. Ray Nettles has built a career around a single question: why people lose their hair—and how the process can be stopped earlier and treated more effectively. As both a clinician and someone who has personally experienced hair loss, Nettles has long challenged conventional, one-size-fits-all solutions that focus on symptoms rather than causes.
“Hair loss is never just about the hair,” said Dr. Nettles, Chief Medical Scientist at Stop and Regrow. “It’s often a visible indicator of deeper biochemical imbalances. Our objective is to identify and correct those imbalances, not simply cover them up.”
From Personal Experience to Clinical Innovation
Nettles’ interest in hair loss began early in life, as he watched his father and older brothers develop androgenetic alopecia. That personal exposure led him to study genetics and hereditary hair loss, eventually contributing academic research on how these traits are passed through families.
He later trained as a hair transplant surgeon and cosmetic dermatologist. Over time, however, he grew increasingly concerned that widely used treatments—such as transplants, minoxidil, and finasteride-based regimens—often addressed only the visible effects of hair loss while leaving the underlying biological drivers untouched.
A Data-Driven, Personalized Model
Stop and Regrow was developed around a core principle: effective hair loss treatment must begin with the patient’s internal biochemistry, not just the scalp.
Instead of standardized formulas or fixed dosing, the program relies on a personalized protocol that includes comprehensive blood testing to identify hormonal, enzymatic, and nutritional imbalances linked to hair loss. Based on these results, patients receive customized topical formulations developed with compounding pharmacists, alongside targeted oral medications and supplements designed to regulate the enzymes and hormones associated with genetic hair loss.
Nutrition and lifestyle guidance are also incorporated to support metabolic health and scalp function. Together, these elements are used to build an individualized treatment plan aimed at slowing or stopping further hair loss and promoting regrowth where hair follicles remain viable.
“Every patient’s biology is different,” Nettles said. “We build treatment plans from lab data upward, rather than relying on a generic playbook.”
A Non-Surgical, Holistic Alternative
The Stop and Regrow program is positioned as an alternative to surgery, injections, and short-term topical solutions. According to the company, thousands of patients have enrolled in the program and achieved measurable regrowth.
One patient, Brandon, joined Stop and Regrow in 2019 after years of unsuccessful attempts with conventional products. “Within months, I noticed visible improvement in my crown and hairline,” he said. “It had a significant impact on my confidence and mental health.”
Other patients, including Eugene and Susie, report similar outcomes, citing the program’s emphasis on lab data, overall health, and non-invasive care as key reasons for choosing it over procedures such as transplants or scalp injections. While individual results vary, these case studies reflect the type of outcomes the program seeks to deliver.
Built on Ongoing Research
The precision-medicine framework behind Stop and Regrow is the result of years of research and clinical refinement. Nettles has worked closely with compounding pharmacists to improve topical absorption and stability, while also studying how hormone levels and enzyme pathways influence genetic hair loss.
Treatment formulas and dosing protocols continue to evolve based on patient outcomes and ongoing lab analysis, with the aim of improving both the speed and quality of regrowth. Nettles has also applied the same methodology to his own hair loss, addressing both androgenetic alopecia and immune-mediated alopecia areata.
Industry Recognition
In 2025, Stop and Regrow was awarded the Evergreen Award for “Best Hair Regrowth Program in the USA,” recognizing its application of precision medicine to hair restoration. The accolade highlights the program’s individualized, science-based approach as a differentiated alternative within a crowded hair loss market.
“We’re still learning more every year,” Nettles said. “But when you take the time to understand each person’s chemistry, you can often change the trajectory of their hair—and sometimes their overall health as well.”
About Stop and Regrow
Stop and Regrow is a precision-medicine hair loss program founded by physician and medical researcher Dr. Ray Nettles. Drawing on more than three decades of research and clinical experience, the program integrates detailed blood analysis, personalized topical and oral treatments, and nutrition and lifestyle guidance to address the underlying causes of hair loss. The company has served thousands of patients seeking a customized, non-surgica
