Free delivery
90 Day Refill - Image 1
90 Day Refill - Image 2
90 Day Refill - Image 3
90 Day Refill - Image 4
90 Day Refill - Image 5
90 Day Refill - Image 6
90 Day Refill - Image 7
(60)

90 Day Refill

€102.21
  • Free delivery on subscriptions
  • Free sample each month
  • Pause or cancel anytime
  • 365 day free returns
Trusted ShopsTrusted Shops certified
1

Due to high demand: only limited stock remaining in the EU warehouse

  • PayPal
  • Klarna
  • SEPA-Lastschrift
  • Sofort
  • giropay
  • Google Pay
  • American Express
  • Visa
  • Mastercard
  • Maestro
Trusted ShopsTrusted Shops certified
Product description

Key Benefits

  • Provides C15:0 (pentadecanoic acid).
  • Patented, purified ingredient.
  • Fish-oil-free formulation.
  • Provides 90-day supply.


Fatty15 is a daily supplement that provides pure C15:0, also called pentadecanoic acid. C15:0 is an odd-chain saturated fatty acid found naturally in small amounts in certain foods. Research has shown it may meet the criteria of an essential fatty acid, meaning the body needs it but cannot produce enough on its own. 

Fatty15 contains a purified, patented form of C15:0, developed for stability and consistent intake. Unlike some fats, C15:0 is resistant to oxidation, which helps it remain stable over time. Studies have explored how dietary C15:0 contributes to maintaining normal fatty acid levels in the body.

Taken daily, this simple capsule offers a practical way to supplement essential dietary fats as part of a balanced routine.

Why Fatty15 is Healf
C:15 can be found in most foods, but it is typically mixed with much higher levels of pro-inflammatory fatty acids. Fatty15 stands apart by providing a pure, patented, and bioavailable form of C15:0, without the additional fats commonly found in dietary sources. Developed through extensive scientific research, this award-winning ingredient offers a consistent and controlled way to supplement C15:0. It’s a single-ingredient formulation rooted in purity, quality, and research integrity.

Fatty15 was founded by Dr. Stephanie Venn-Watson and Dr. Eric Venn-Watson, whose backgrounds in veterinary epidemiology, public health, and military medicine inspired a new approach to wellness. Their work with marine mammals led to the discovery of fatty acid C15:0 (FA15™), which became the foundation of the brand’s innovation. Built on scientific research and a shared vision for progress, Fatty15 reflects a commitment to bridging science and everyday wellbeing.

With our Healf Curation Process, we do the work for you. Shop with confidence knowing that every item has been tried, tested, and curated for you.

Learn more about each step—Brand Discovery, Expert Validation, and Community Testing—here.
Ingredients
FA15™ (Pentadecanoic Acid), Vegetable Cellulose Capsule
Suggested use
Take 1 capsule a day.

Additional Information:

Food supplements and foods sold by Healf should not be used as a substitute for a varied, balanced diet and healthy lifestyle.

If you are pregnant, breastfeeding, have a medical condition, or are taking any medications, please consult with a healthcare professional before use. Use products only if the seal is intact. Store in a cool, dry place, out of the reach of young children. Do not exceed the recommended daily intake.

We make every effort to ensure that product information on our website is accurate and up to date, but packaging and ingredients may occasionally vary from images shown on site. Please refer to the product label and contact Healf before use if you have any questions regarding your specific allergies or intolerances.

Summary

Fatty15 is a daily supplement offering a 90-day supply of pure C15:0, a patented, purified odd-chain saturated fatty acid. Customers report feeling great and energetic, experiencing better sleep, and appreciating the small pill size. The fish-oil-free formulation is stable and consistent, supporting normal fatty acid levels.

AI-generated from verified customer reviews

Reviews

  • 2 months ago

    They seem to be helping,

    They seem to be helping, smooth skin and soft hair

    Alice B.Verified Buyer
  • 2 months ago

    cant load the rreciews

    excellent and fabulous and. amazing and fantastic my review arent loading please help every time it blocks me from posting

    Rebecca A.Verified Buyer
  • 3 months ago

    Wonderful as always the caring

    Wonderful as always the caring Healf team who connects the public to the latest in health scientists discoveries in health Fatty 15 is a wonderful routine daily for sleep health which has been improved from fatty15

    Rebecca A.Verified Buyer
  • 3 months ago

    Amazing product

    Amazing product

    Bukola O.Verified Buyer
  • 4 months ago

    This definitely makes a difference

    This definitely makes a difference to how I sleep. I've never had a good relationship with sleep, so to find something that helped from the outset has been a gift. I was expecting to leave it a few weeks at least, but it was a definite change and I wouldn't be without fatty now, especially as the original bottle is great and I love that you can be more environmentally friendly with refills.

    Melissa L.Verified Buyer
  • 4 months ago

    Love this product. I Can

    Love this product. I Can really notice a difference in my mood, energy and digestion.

    Lauren G.Verified Buyer

The Healf Promise

Rated 4.8 (Excellent) based on 13,000+ reviews on Trustpilot

Dillon Jagatia

A comprehensive approach to wellbeing

Healf has impressed me with its comprehensive approach to wellbeing. Their commitment to natural ingredients and cutting-edge technology is evident. From vitamins and supplements to healthy snacks and cooking essentials, they've curated a diverse range of options to cater to various health needs.

Jesse Hansen-Bartel

Top-tier products

If you're serious about wellbeing, you need Healf. Their products are top-tier and the customer service team has been super attentive!

Mayah

One of the best wellbeing websites I've come across.

Healf is one of the best wellbeing websites I've come across. It's nice to know that they thoroughly check the products they sell so you know you are getting good quality stuff. Highly recommend.

Lydia Free

The best wellbeing website…

The best health and wellbeing website in the UK. The range of products is fantastic, even on hard to reach USA products. I love the subscription service too. I'd be lost without this website.

Alex

Amazing!

Healf isn't just another wellbeing brand. They really get it. The products are fantastic, and the support is always so personal and genuine!

Janet

Great products, service, and customer support

Healf have a great range of wellbeing products not available elsewhere in the UK. They are competitively priced as one-off, but even better if you take up the 'subscription' which is super flexible too. I'd have no hesitation in recommending Healf.

S Jones

I love Healf

It's the only place I get really decent health and wellbeing brands, particularly US brands. I've bought a Pvolve set, lots of Skinny Confidential stuff, Thorne supplements etc., the really great stuff that's impossible to get otherwise.

Dillon Jagatia

A comprehensive approach to wellbeing

Healf has impressed me with its comprehensive approach to wellbeing. Their commitment to natural ingredients and cutting-edge technology is evident. From vitamins and supplements to healthy snacks and cooking essentials, they've curated a diverse range of options to cater to various health needs.

Jesse Hansen-Bartel

Top-tier products

If you're serious about wellbeing, you need Healf. Their products are top-tier and the customer service team has been super attentive!

Mayah

One of the best wellbeing websites I've come across.

Healf is one of the best wellbeing websites I've come across. It's nice to know that they thoroughly check the products they sell so you know you are getting good quality stuff. Highly recommend.

Lydia Free

The best wellbeing website…

The best health and wellbeing website in the UK. The range of products is fantastic, even on hard to reach USA products. I love the subscription service too. I'd be lost without this website.

Alex

Amazing!

Healf isn't just another wellbeing brand. They really get it. The products are fantastic, and the support is always so personal and genuine!

Janet

Great products, service, and customer support

Healf have a great range of wellbeing products not available elsewhere in the UK. They are competitively priced as one-off, but even better if you take up the 'subscription' which is super flexible too. I'd have no hesitation in recommending Healf.

S Jones

I love Healf

It's the only place I get really decent health and wellbeing brands, particularly US brands. I've bought a Pvolve set, lots of Skinny Confidential stuff, Thorne supplements etc., the really great stuff that's impossible to get otherwise.

Frequently asked questions

How do we curate our products?

Every product undergoes our Healf Curation Process. With it, you can shop confidently knowing that every item has been tried and tested before it reaches you. Our Healf Curation Process includes three key steps: Brand Discovery, Expert Validation, and Community Testing. Through these, we assess quality, ingredients, effectiveness, and more, ensuring that every product empowers your wellbeing.

Do you have resources on how to enhance wellbeing?

The Healf Source offers detailed insights into different aspects of wellbeing, as well as guidance, research, recipes, and more to help you invest in your personal wellbeing journey. You can also subscribe to our weekly newsletters for the latest updates at Healf and in the wellbeing industry. Subscribe via the sign-up block at the bottom of this page.


How can I find out more about the ingredients in a product?

We love people who check ingredients as carefully as we do, so you'll find detailed information about the ingredients used on every product page (where applicable). If you see something you'd like to flag with us or have additional questions, please don't hesitate to get in touch—we'd love to hear from you.

Healf Curation Process™

Every product undergoes our rigorous Healf Curation Process, ensuring you are always getting the best when it comes to your wellbeing.

Our approach keeps us at the forefront of wellbeing. With our global network of health professionals and AI-powered trend analysis, we curate the leading supplements, tools, and tech that pioneer the industry.

Each product at Healf is carefully examined by a panel of industry specialists—including dieticians, personal trainers, psychologists, and sleep experts—to ensure it meets our high standards for quality, efficacy, and ingredient formulations.

By collaborating with a dedicated group of customers who test and review each product, we ensure that only those truly beneficial to your wellbeing are offered here at Healf.