fatty15 Starter Kit 90-day Supply

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Delivered quarterly to your door
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30-day money-back guarantee
30-day money-back guarantee
† Some of the users featured above were compensated for sharing their experience with fatty15.

Fatty15 is a science-backed, patented and award-winning supplement containing pure C15:0 - a crucial fatty acid that strengthens our cell membranes against lipid peroxidation and slows aging at the cellular level. The result? Staying healthier, longer.*

Fatty15 has key activities that support*:

  • Metabolic health
  • Cognitive health
  • Immune response
  • Liver health
  • Red blood cell health

 

70% of customers report seeing and feeling benefits within 16 weeks, including deeper sleep, calmer mood, improved energy, and overall improved health.†*

Note: After your initial kit, all subscription refills will ship every 90 days at $119.95.

Fatty15 contains pure pentadecanoic acid (C15:0). Fatty15 is a science-backed, patented, award-winning, pure and vegan-friendly C15:0 supplement to support your long-term health and wellness.

C15:0, the ingredient in fatty15, is GRAS (generally regarded as safe) certified, which means fatty15 is safe for children age 4+, pregnant women, nursing moms, and pretty much everyone except for infants and toddlers.

Our bodies tend to build up until we are about 30 years old. After 30, our bodies start to break down due to increasingly fragile cells, less efficient mitochondria, and an increased need to support immunity and metabolism. By our 40s, these changes can impact health and may require pills to address them. As we age from 65 on up, we can become increasingly fragile and fatigued.

So, taking fatty15 when you’re younger may help keep your healthy body healthy…when you’re 30 to 65, it can help your body be more resilient…and when you’re older than 65, it can provide extra support to help restore some of that resilience and energy.*

Fatty15 should be taken daily. We recommend that you start with 1 or 2 capsules, and can be taken either with food or on an empty stomach. It is just that versatile of a supplement!

Try our New Gummies for Adults

Fatty15 Gummies for Adults
5.0
Fatty15 Gummies
$79.95 $63.96 Save 20%
10+

Years of Research

A decade of collaboration with the U.S. Navy with groundbreaking results.

30+

Awards

Widespread recognition from leading authorities in health and wellness.

100+

Peer-Reviewed Studies

studies in top-tier journals reinforce scientific credibility.

60+

Patents

Exclusive patents across multiple key healthcare applications.

Whole lotta
science,
one tiny pill.

Easy-to-take tiny pills with pure C15:0. No smell and no taste. Felt benefits. The result? 99% of customers report that Fatty15 Original Capsules have become part of their daily health routine.

CNBC Changemaker Award

Newsweek Readers Choice Award

World Changing Ideas

#1 Fastest Growing Supplement Company

Global Excellence Awards

We’re Talking Whole Body Health.

How fatty15’s cellular benefits translate to whole-body wins.

We’re Talking Whole Body Health.

Brain

Fatty 15 targets key pathways that promote healthy dopamine & endocannabinoid levels to support your cognitive health, along with deeper sleep.*

Read the studies

Metabolism

Fatty15 supports metabolic health by activating AMPK and AKT, as well as repairing mitochondria, to promote healthy glucose control and improved overall energy.*

Read the studies

Liver

Fatty 15 activates PPARα and PPARδ to support healthy liver function.*

Read the studies

Red Blood Cells

Fatty15 strengthens red blood cell membranes against oxidative stress & premature breakdown.*

Read the studies

Immunity

Fatty15 inhibits 18+ proinflammatory cytokines to support healthy immune function.*

Read the studies
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Unmatched quality

Here at fatty15, we are dedicated to the highest standards in science, supplement quality and safety.

  • Check Icon Backed by 100+ peer-reviewed studies
  • Check Icon Pure & patented C15:0 ingredient
  • Check Icon Highest-standard manufacturing
  • Check Icon Every batch independently tested
  • Check Icon Generally Recognized as Safe (GRAS)
  • Check Icon Claims backed by Competent & Reliable Scientific Evidence (CARSE)
Block Image
Section Image
Science-Backed. Customer Loved.

100,000+ active fatty15 subscribers
6,000+ 5 star reviews

70% of fatty15 customers report seeing or feeling benefits within 16 weeks, including:*

  • Check Icon Better sleep
  • Check Icon Improved energy
  • Check Icon Healthier mood
  • Check Icon Overall improved health

Based on a survey with 6,243 fatty customers.

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, Functional Medicine Physician and NYT Best Selling Author

Dr. Mark Hyman, Functional Medicine Physician and NYT Best Selling Author

Healthy Aging for All.

Welcome to the family of fatty15 C15:0 supplements,
for the grown up and the growing up.

Most Popular
Fatty15 Original 
Capsules

Fatty15 Original 
Capsules

Advanced Formula
Extra Strength

Exclusively for Healthcare Practitioners

AFEX delivers a higher dose of pure, bioavailable, science-backed C15:0 to support healthcare practitioners in addressing their patients’ specific nutritional needs.*

30-Day Supply
New
Fatty15 Gummies for Adults

Fatty15 Gummies for Adults

Advanced Formula
Extra Strength

Exclusively for Healthcare Practitioners

AFEX delivers a higher dose of pure, bioavailable, science-backed C15:0 to support healthcare practitioners in addressing their patients’ specific nutritional needs.*

30-Day Supply
New
Fatty15 Gummies for Kids

Fatty15 Gummies for Kids

Fatty15 Gummies
for Kids

A kid-friendly start to lifelong cellular health — supporting growing bodies with C15:0, a core nutrient their cells can use every day.

Bringing C15:0 to support kids’ healthy growth & development in a yummy mixed berry (and sugar free) gummy.*

30-Day Supply
Ask your doctor
Fatty15 Advanced Formula

Fatty15 Advanced Formula

Advanced Formula
Extra Strength

Exclusively for Healthcare Practitioners

AFEX delivers a higher dose of pure, bioavailable, science-backed C15:0 to support healthcare practitioners in addressing their patients’ specific nutritional needs.*

30-Day Supply

What the fatty15 community is saying

4.9
Rated 4.9 out of 5 stars
Based on 6,367 reviews
Total 5 star reviews: 6.1k
Total 4 star reviews: 155
Total 3 star reviews: 77
Total 2 star reviews: 32
Total 1 star reviews: 47
98%would recommend this product
Keywords
Keywords
Rating
Ratings
6,367 reviews
  • P
    Pierre
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    2 months ago
    Great supplement

    I've been taking for s few days now and I feel more energy, also my sleep has improved, highly recommend.

  • CR
    Candy R.
    Verified Reviewer
    I recommend this product
    Rated 5 out of 5 stars
    2 months ago
    Sleep returned almost instantly.

    I haven’t been able to sleep for a long long while. Go to bed, sleep two hours wake up and toss and turn the rest of the night. Drag through the day.

    Started these and instantly I slept through the night but still every time I sat down. I figured I was getting the makeup rest I needed. Then, after a week, I decided to take them at night. That did the trick. Sleep through the night, not through the day. Nice deep restful sleep.

    I’m right at the very beginning of taking these things. Can’t wait to see what’s coming.

  • S
    Steven
    Verified Reviewer
    I recommend this product
    Rated 5 out of 5 stars
    5 months ago
    Steve

    Excellent product..compliments on my movemen...nd feel good....recommending to best friend ..charlene is excellent as all th reps are..look forward to growing old .with all...great company..ty again

  • KS
    Karen S.
    I do not recommend this product
    Rated 1 out of 5 stars
    5 months ago
    No difference seen or felt

    I haven’t really noticed any real difference

  • KC
    Kathleen C.
    Verified Reviewer
    I recommend this product
    Rated 5 out of 5 stars
    5 months ago
    A wonderful experience

    Positive. I will continue taking it.

  • KT
    Karen T.
    I recommend this product
    Rated 5 out of 5 stars
    5 months ago
    Feeling more calm

    More calm

  • KO
    Karen O.
    Verified Reviewer
    I recommend this product
    Rated 4 out of 5 stars
    5 months ago
    Much better sleep

    Better sleep

  • ES
    Eric S.
    Verified Reviewer
    I recommend this product
    Rated 5 out of 5 stars
    5 months ago
    Improved energy

    More energy

  • MG
    Mark G.
    I do not recommend this product
    Rated 2 out of 5 stars
    5 months ago
    Nothing noticed

    No change that I can tell

  • SU
    Shea U.
    Rated 3 out of 5 stars
    5 months ago
    Noticing some changes

    I've generally been feeling pretty good. I have energy throughout my work day. I'm still tired in the evenings. I don't know if my sleep has improved. Hunger level seems about the same.

  • KT
    Kevin T.
    I recommend this product
    Rated 5 out of 5 stars
    5 months ago
    Improved sleep

    Better sleep

  • LD
    Lori D.
    Verified Reviewer
    I recommend this product
    Rated 5 out of 5 stars
    6 months ago
    Notable improvements and benefits

    Having more energy and less sleepy during the day.

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 fix nutritional C15:0 deficiencies, optimize the strength of your cells and slow the aging of your cells.

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