Chris Santos
Co-Founder
Serial entrepreneur and wellness innovator who leads KAYU's brand, growth, and consumer experience. Founder of Dr Refresh and creator of METHL methylated vitamins, born from his own MTHFR diagnosis.
About KAYU
Merging advanced medicine with whole-body wellness.
KAYU was founded by clinicians who saw a gap: patients wanted science-backed optimization - hormones, metabolic health, longevity treatment plans - but couldn't find providers who understood both the medicine and the person. KAYU fills that gap.
Our mission
Redefining beauty and wellness as one: the natural result of internal balance.
Traditional healthcare treats symptoms. Med spas treat surfaces. KAYU treats the whole person - starting with comprehensive labs, building treatment plans from your biology, and monitoring continuously so your treatment evolves as you do.
Our clinicians integrate the best of conventional medicine with osteopathic principles, functional diagnostics, and emerging clinical pharmacology. The result: care that's both rigorous and deeply personal.
Every treatment plan is provider-prescribed. Every dose is lab-driven. Every consult is AI-transcribed and recapped so nothing falls through the cracks. That's the KAYU standard.
The name
KAYU means wood in Indonesian.
Our icon is the cross-section of a tree - concentric growth rings radiating from a heartwood center. Each ring represents a year of growth. It's a reminder that health, like a tree, is built from the inside out, one ring at a time.
Rooted in science.
Leadership
The founders behind KAYU.
Three partners building a new standard for personalized, science-backed care.
Narine Chilyan
Co-Founder
Doctorate-trained nurse practitioner (DNP, AGNP-C) who shaped KAYU's clinical model across a decade spanning critical care and functional medicine. Her focus: the measurable, fixable biomarkers behind energy, hormones, and weight.
Your care team
Meet the clinicians on your treatment plan.
Every KAYU patient is paired with a real clinician - not a call center. Licensed osteopathic physicians, nurse practitioners, and PAs with deep training in hormone optimization, metabolic health, and longevity.
HormonesFunctional MedicineWeight Loss
Narine Chilyan
DNP, AGNP-C
Clinical Director · Functional & Preventive Medicine
Over a decade in healthcare, from ICU critical care to functional medicine. MSN from Chamberlain University, DNP from Charles R. Drew University. Created the Ten Top Tips for Transforming Health - a habit-based program for lasting weight loss and vitality. Her mission at KAYU: redefine beauty and wellness as one.
DNP, Charles R. Drew University
MSN, Chamberlain University
AGNP-C (Adult-Gerontology Nurse Practitioner)
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OsteopathicIntegrativePrimary Care
Dr. Aram Mkhitarian
DO
Medical Director · Integrative Medicine
Licensed osteopathic physician (DO) with nearly two decades of clinical experience. Graduated from the College of Osteopathic Medicine of the Pacific. Integrates conventional medicine with osteopathic principles and lifestyle-driven care.
DO, College of Osteopathic Medicine of the Pacific
Licensed Osteopathic Physician (DO)
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Our care philosophy
Six promises we refuse to break.
These aren't marketing bullets. They're the operating principles every provider, treatment plan, and line of code at KAYU is built against.
Clinician-owned
KAYU is owned and operated by practicing clinicians. Treatment plan decisions are made by licensed providers, not growth teams.
Lab-driven treatment plans
Every treatment plan starts with 50+ markers. No guesswork. Your biology writes the prescription, not a template.
Licensed pharmacy
Prescriptions are FDA-approved medications dispensed by a licensed U.S. pharmacy partner.
Continuous tuning
Your treatment plan evolves. Quarterly labs, continuous progress tracking, and provider-adjusted dosing - not set-and-forget.
HIPAA end-to-end
Your PHI is encrypted at rest and in transit. Supabase, Daily.co, DoseSpot, Resend - every vendor carries a BAA.
24/7 messaging
Secure in-app chat with your care team. On-call escalation for urgent needs. Real humans, not chatbots.
Your next move
Ready to feel rooted?
Two minutes to the assessment. One week to your first consult. A treatment plan built on your bloodwork from a provider who knows your name.
✓ No credit card✓ Cancel anytime✓ HSA / FSA eligible