Radiant Health SF

Radiant Health SF, located in San Rafael, California, provides naturopathic and functional medicine services with a clinical focus on hormone balancing, thyroid optimization, and medical weight loss. Under the direction of Dr. Kristy Vermeulen, a licensed Naturopathic Doctor, the practice integrates peptide therapies and evidence-based protocols to address metabolic dysfunction, hormonal imbalances, and age-related decline. Patients seeking alternatives to conventional weight management or those experiencing symptoms of thyroid disorders, adrenal fatigue, or perimenopause find targeted interventions at this Marin County clinic.

The medical weight loss programs at Radiant Health SF incorporate GLP-1 receptor agonist peptides, specifically semaglutide and tirzepatide, which have demonstrated efficacy in appetite regulation and glycemic control. These peptides are prescribed following comprehensive metabolic assessments that include lab work evaluating insulin resistance, thyroid function, and inflammatory markers. Dr. Vermeulen tailors dosing protocols to individual patient responses, monitoring progress through regular follow-up appointments that track weight trends, body composition changes, and metabolic biomarkers. The clinic also offers NAD+ therapy, a coenzyme supplementation approach used to support cellular energy production, mitochondrial function, and metabolic efficiency—particularly beneficial for patients experiencing fatigue, cognitive decline, or recovery challenges.

Dr. Kristy Vermeulen brings naturopathic training that emphasizes root-cause analysis and individualized treatment plans. Her approach combines peptide therapy with nutritional counseling, lifestyle modification strategies, and when appropriate, bioidentical hormone replacement. For thyroid optimization, she evaluates full thyroid panels including TSH, free T3, free T4, reverse T3, and thyroid antibodies, addressing subclinical hypothyroidism and Hashimoto's thyroiditis with both pharmaceutical and botanical interventions. Hormone balancing protocols address estrogen dominance, progesterone deficiency, testosterone decline, and cortisol dysregulation through testing that includes salivary hormone panels and DUTCH testing when clinically indicated.

Patients at Radiant Health SF begin with an initial consultation lasting 60 to 90 minutes, during which Dr. Vermeulen reviews medical history, current symptoms, previous lab work, and treatment goals. This in-person visit in San Rafael allows for physical examination and immediate clinical assessment. Follow-up appointments typically occur every four to six weeks during active treatment phases, with adjustments made based on symptom resolution and laboratory findings. The clinic requires patients to complete baseline labs before initiating peptide therapy, and ongoing monitoring includes metabolic panels, lipid profiles, and hormone levels to ensure safety and efficacy throughout treatment.

Radiant Health SF operates exclusively through in-person consultations at its San Rafael location, serving patients throughout Marin County and the greater San Francisco Bay Area. This model allows Dr. Vermeulen to perform hands-on assessments, including thyroid palpation, body composition analysis, and physical evaluations that inform treatment decisions. The clinic's focus on functional medicine means that peptide therapy is integrated within broader protocols addressing gut health, nutrient deficiencies, stress management, and sleep optimization—factors that significantly influence metabolic and hormonal outcomes. Patients receive detailed treatment plans with clear timelines, expected milestones, and criteria for adjusting or discontinuing therapies based on clinical response.