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90 Day Refill
Stay on track with Fatty15’s 90 Day Refill—pure C15:0 for your daily routine.
Free delivery on subscriptions
Free sample each month
Pause or cancel anytime
365 day free returns
In stock. Next day delivery available.
Healf Zone members get free next day delivery on all orders.
Buy now, pay later from £35.00/mo
Key benefits for your everyday wellbeing
- Features pure C15:0 (pentadecanoic acid) in a vegan-friendly capsule.
- Dairy-free and gluten-free—suitable for a range of lifestyles.
- Simple, once-daily capsule fits easily into your routine.
- 90-day supply helps you stay consistent for the long term.
Fatty15’s 90 Day Refill delivers C15:0 (pentadecanoic acid) in a patented, pure, and vegan-friendly formula. Designed for those who value a steady, daily approach to wellbeing.
Includes 3x30 capsules for a full 90-day supply.
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.
FA15™ (Pentadecanoic Acid), Vegetable Cellulose Capsule
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.
90 Day Refill
Stay on track with Fatty15’s 90 Day Refill—pure C15:0 for your daily routine.
Free delivery on subscriptions
Free sample each month
Pause or cancel anytime
365 day free returns
In stock. Next day delivery available.
Healf Zone members get free next day delivery on all orders.
Buy now, pay later from £35.00/mo
Key benefits for your everyday wellbeing
- Features pure C15:0 (pentadecanoic acid) in a vegan-friendly capsule.
- Dairy-free and gluten-free—suitable for a range of lifestyles.
- Simple, once-daily capsule fits easily into your routine.
- 90-day supply helps you stay consistent for the long term.
Fatty15’s 90 Day Refill delivers C15:0 (pentadecanoic acid) in a patented, pure, and vegan-friendly formula. Designed for those who value a steady, daily approach to wellbeing.
Includes 3x30 capsules for a full 90-day supply.
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.
FA15™ (Pentadecanoic Acid), Vegetable Cellulose Capsule
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.
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Frequently asked questions
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.
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.
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.
The Discovery
Expert Validation
Community Testing
The Discovery
Expert Validation