The Story Behind the Formula

A Physician Who Spent 60 Years Looking
for a Supplement
He Could Actually Recommend

Dr. Robert Heller has practiced internal medicine for more than six decades. Over the course of his career, he managed fifty clinical trials, helped develop the Coronary Calcium Scan, and served as a Clinical Professor at UCLA Medical Center. He has seen thousands of patients navigate the experience of aging.

And he noticed a pattern he couldn't ignore.

Two patients, same age, same general health profile. One was thriving — sharp, energetic, engaged. The other was struggling with fatigue, brain fog, and a body that didn't bounce back the way it used to. The difference wasn't willpower or attitude. Something deeper was at work.

In 2023, scientists published a landmark paper identifying 12 biological processes that change as we age. For Dr. Heller, this was the framework that finally explained what he'd been observing for decades: the people who maintained their vitality tended to be supporting these underlying systems, whether they knew it or not.

But when he looked for a supplement that reflected this science — one with the right ingredients, in effective forms, at real doses — it didn't exist. Most products were marketing exercises. The few with promising ingredients buried them in hundred-compound formulas where effective doses were impossible to verify.

So he partnered with Dimitri Villard — a Harvard-educated biotech entrepreneur who had co-founded research programs at the USC Keck School of Medicine — and together they built the formula Dr. Heller had been looking for his entire career.

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"This is the formula I spent my career wishing existed. I take it myself, every day. Not because I have to — because the research supports it."

— Dr. Robert Heller, MD, Co-Founder & Medical Director
Board-Certified Internal Medicine · Former Clinical Professor, UCLA Medical Center

Material Connection Disclosure: Dr. Heller is a co-founder of Live Longer, Inc. and has a financial interest in Juvelixir®. This statement reflects his professional perspective and personal experience.

Dr. Robert Heller, MD, Co-Founder & Medical Director of Juvelixir, seated at his desk in a white coat
Dr. Robert Heller playing tennis at 90 years old
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What We Stand For

Precision Over Volume. Science Over Spectacle.

Published Research, Real Doses

Every ingredient in Juvelixir® was selected based on published, peer-reviewed research — including human clinical studies where available. Doses aligned with the
human studies we cite. Where other formulas list an ingredient at a fraction of its researched amount just to put it on the label, we use the full dose.

Branded, Clinically Studied Forms Where It Matters Most

For several of our key ingredients, we chose branded forms from specialty suppliers who conduct their own published human clinical research on their specific compounds. This means you're getting the studied form that was tested — not a generic equivalent that may behave differently in the body. For ingredients where branded forms don't materially affect bioavailability or efficacy, we source from vetted, quality-controlled suppliers and verify every batch through independent testing.

Radical Transparency

Every batch of Juvelixir® is independently tested by Certified Laboratories to verify that every ingredient listed on the label is actually in the bottle, in the exact amounts shown. We publish what's in each capsule, at what dose, and why. No proprietary blends. No hidden formulas.
“

We're not trying to be the supplement with the longest ingredient list.We're focused on rigorous formulation and quality you can trust.

Dimitri Villard, MSc, Founder & CEO

The Team

Built by People WhoHave Done This Before

Dimitri Villard, MSc

Dimitri Villard, MSc

Founder & CEO · Harvard BA · China International Medical University MSc

Co-founded Pivotal BioSciences with senior faculty at USC Keck School of Medicine. Helped establish the USC Institute for Integrative Health. Former Director, Société Générale. Member, TCA Venture Group — the largest angel venture capital group in the United States. His role: making sure the science makes it into the bottle, exactly as the research supports.
Dr. Robert Heller, MD

Dr. Robert Heller, MD

Co-Founder & Medical Director · Board-Certified Internal Medicine

Former Clinical Professor of Medicine, UCLA Medical Center. Principal Investigator for Merck, Pfizer, Amgen, AbbVie, and Moderna. 60+ years in internal medicine, preventive care, and nutrition. At 90, Dr. Heller still practices medicine and takes Juvelixir® daily.
Dr. Terry Shirvani, ND

Dr. Terry Shirvani, ND

Master Formulator · 20+ Years · 100+ Products

Dr. Shirvani has formulated for The Chopra Center, Traditional Medicinals, and Progressive Labs. Former Senior Scientist, Life Extension and Chief Science Officer for GOLO. National University of Natural Medicine doctoral graduate. Operates by the naturopathic principle: patient well-being first, always. Dr. Shirvani has played a leading role in industry compliance with and implementation of dietary supplement Good Manufacturing Practices.
Dr. Fady Hannah-Shmouni, MD

Dr. Fady Hannah-Shmouni, MD

Scientific Advisor · Yale · NIH · University of Toronto

Former Director, NIH Graduate Medical Education. Principal Investigator of neuroendocrine genetics at the National Institute of Child Health. Board-certified in Internal Medicine, Endocrinology, and Metabolism. Editor-in-Chief, Endocrine and Metabolic Science (Elsevier). 100+ published articles on stress, hormones, and aging. Dr. Hannah-Shmouni advises on ingredient selection, dosing protocols, and the endocrine and metabolic science underlying the Juvelixir® formula.