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Healthy aging starts at the cell.

Fatty15 is a science-backed, award-winning, and pure C15:0 supplement that supports your long-term health and wellness.*

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2025 Inc. 5000

#1 Fastest-Growing Supplement

2025 Wellbeing Awards

Best Breakthrough Supplement

2025 CNBC

Changemaker Award

2024 Fast Company

World Changing Idea in Wellness

Fatty15 strengthens our cell membranes, serving as an armor against premature breakdown. By doing so, fatty15 slows and reverses aging at the cellular level.*

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When your cells thrive, so do you. Fatty15 has 36+ cellular benefits that support metabolic, cognitive, liver, immune and red blood cell health.* The list goes on...

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This simple yet powerful supplement is here to support your long-term health and wellness. Join the 100,000+ who have made fatty15 part of their daily wellness routine.

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A healthier you starts with your brain.

A healthier you starts with your metabolism.

A healthier you starts with your immune system.

Science-backed to
reverse cellular aging.*

How cellular benefits translate to whole body benefits

Metabolic Health

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Fatty15 activates AMPK and AKT, which maintains healthy glucose and insulin levels within the normal range. This helps explain why higher C15:0 levels are associated with better long-term metabolic health.*

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A decade of research led to this once-in-century breakthrough.

Get the cellular benefits your body needs.

Fatty15 offers a broad range of cellular benefits, all while supporting many types of cells throughout our bodies. Unlike omega-3, fatty15 strengthens cell membranes against age-driving lipid peroxidation. To boot, fatty15 has no fishy taste and works at a low dose to slow cellular aging.*

Get the cellular benefits your body needs.

36+ cellular benefits

As published in Nutrients, fatty15 has a wide range of cellular benefits that support healthy aging. Fatty15’s clinically relevant benefits were dose-dependent and broadly seen across 10 human cell systems that mimicked various aging-related states.*

36+ cellular benefits

A leading geroprotector

Fatty15 is emerging as a leading geroprotector, which is a molecule that slows cellular aging to promote our long-term health. Peer-reviewed studies support how C15:0 and fatty15 meet the 7 longevity molecule must-haves*

A leading geroprotector

Get the cellular benefits your body needs.

Fatty15 offers a broad range of cellular benefits, all while supporting many types of cells throughout our bodies. Unlike omega-3, fatty15 strengthens cell membranes against age-driving lipid peroxidation. To boot, fatty15 has no fishy taste and works at a low dose to slow cellular aging.*

Get the cellular benefits your body needs.

36+ cellular benefits

As published in Nutrients, fatty15 has a wide range of cellular benefits that support healthy aging. Fatty15’s clinically relevant benefits were dose-dependent and broadly seen across 10 human cell systems that mimicked various aging-related states.*

36+ cellular benefits

A leading geroprotector

Fatty15 is emerging as a leading geroprotector, which is a molecule that slows cellular aging to promote our long-term health. Peer-reviewed studies support how C15:0 and fatty15 meet the 7 longevity molecule must-haves*

A leading geroprotector
10+

Years of Research

A decade of US Navy funding led to groundbreaking results.

20+

Awards

Widespread recognition from leading authorities in health and wellness.

100+

Peer-Reviewed Studies

Rigorous science has resulted in meaningful results.

60+

Licensed Patents

Exclusive patents across multiple key healthcare applications.

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Health leaders recommend fatty15.

“One of my favorite longevity-boosting supplements… fatty15 acts as an armor for your cells, strengthening cell membranes, repairing mitochondria, and reversing the hallmarks of aging…”

Dr. Mark Hyman, The Father of Functional Medicine
Dr. Will Cole

“Wow, this is massive science. It’s going to help everybody because it’s so fundamental to human health”

Dr. Will Cole, Senior Functional Medicine Clinic Director

“If you use omega-3s, I encourage you to check out…fatty15. One of the most important things that it can do is…to repair actual damage to the cells.”

Thomas DeLauer, Celebrity Fitness and Nutrition Expert
Nat Niddam

“This is part of that building block that you need for everything else to work properly… it’s important and foundational to health.”

Nat Niddam, Holistic Nutritionist and Longevity Educator
Dr. Nicholas Schork

"The breadth of evidence for its health benefits is what makes C15:0 so compelling. Very few, if any, candidate geroprotectors have been subjected to the same level of rigor in a wide variety of settings."

Dr. Nicholas Schork, Leader at the National Institute of Health’s Longevity Consortium

FAQs

C15:0 (pentadecanoic acid) is a healthy odd-chain saturated fatty acid. Fatty15’s co-founder, Dr. Steph Venn-Watson, discovered that C15:0 is not only a good fat, but that C15:0 meets the rare criteria of being the first essential fatty acid to emerge since omega-3, which was over 90 years ago.

00+ peer-reviewed studies have been published relevant to C15:0’s health benefits, including how C15:0 has 36+ cellular activities that support metabolic, heart, liver, cognitive, red blood cell and immune health.

Essential fatty acids are nutrients that our bodies need to maintain baseline health, but can’t make enough on their own. That means we must get these essential fats from our diet or supplements. Because C15:0 has been shown to have a wide range of cellular benefits, C15:0 is emerging as the essential, essential fatty acid.*

While C15:0 can be found in some foods, it's mixed with much higher levels of pro-inflammatory fatty acids. Fatty15 provides a pure, patented, science-backed, award-winning and bioavailable C15:0 ingredient.

Fatty15 (C15:0) is an odd-chain saturated fatty acid, while omega-3s are polyunsaturated fatty acids. While both are beneficial fats that support healthy immune responses, they also have very different roles. For example, fatty15 is a sturdy fat that strengthens our cell membranes and protects them against age-driving lipid peroxidation. In contrast, omega-3s are less stable fats that make our cell membranes flexible but more susceptible to oxidation, especially as we age. The bottom line: Our bodies use both C15:0 and omega-3s to stay healthy, and they can and should compliment each other. The upsides of fatty15 with pure C15:0? Tiny pills with no smell, no taste, and no burps. Better yet, when tested head-to-head against pure EPA, fatty15 had 3x more cellular benefits relevant to our immune, metabolic, heart, and liver health. We recommend working with your healthcare provider to determine what supplement stack is best for you.

Fatty15 activates PPARs, which support healthy liver function. Cell-based and in vivo studies have shown that the pure C15:0 ingredient in fatty15 effectively protects liver cells against lipid peroxidation and pro-inflammatory cytokines. People with higher C15:0 levels have healthier liver function.*

C15:0 activates metabolic pathways that support healthy glucose and lipid metabolism, helping maintain balanced energy levels.*

Yes! Your doctor can order a fatty acid panel, which includes C15:0. Additionally, we partnered with Genova Diagnostics to offer an at-home C15:0 test. These tests measure your C15:0 levels, which allows you to address nutritional C15:0 deficiencies, optimize the strength of your cells and slow the aging of your cells.

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