Cortney L.
SCAM BEWARE
SCAM BEWARE. The company refused to honor their refund policy even though I never opened their product and was willing to send it back to them. They are a SCAM!!! Do not buy this product.
Fatty15 is a science-backed healthy aging supplement featuring pure C15:0, a unique odd-chain saturated fatty acid that is emerging as the first essential fatty acid discovered in more than 90 years. C15:0 is a foundational nutrient that helps support stronger, more resilient cells, healthy mitochondrial function, and whole-body health as we age.Developed by Seraphina Therapeutics, Fatty15 was born from more than a decade of research into C15:0 and its role in human health. Today, Fatty15 makes this important nutrient simple to incorporate into a daily wellness routine—with pure, patented C15:0 backed by 150+ peer-reviewed studies and rigorous quality standards.At its core, Fatty15 is about giving your cells the nutritional support they need to stay strong, resilient, and healthy—helping you feel your best today while investing in healthier aging for the years ahead.
fatty15.com (fatty15.com) has 42 customer reviews on Five Star Index, with an average rating of 3.1 out of 5.
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Personal Care · Orlando, Florida
Excellent

Personal Care · Grants Pass, Oregon
Excellent

Personal Care · Great Neck, NY
Excellent

Personal Care · Costa Mesa, California
Excellent
Showing 18 reviews with 1 star · Clear filters
Cortney L.
SCAM BEWARE. The company refused to honor their refund policy even though I never opened their product and was willing to send it back to them. They are a SCAM!!! Do not buy this product.
James S.
Expensive scam.
Response from fatty15.comOct 21, 2026
Hi James, We’re sorry to hear you feel this way. We’d appreciate the opportunity to better understand your experience. Please reach out to our Nerdy Do-Gooder team if we can be of assistance. In Health, Your fatty15 Team
Laurene C M.
I purchased the one month from the company and I found out that my doctor said that he did not advise me taking this product. Well I didn’t ask for the 30 days back, but I called and I canceled the subscription well the girl that I talked to evidently didn’t cancel the subscription so when the next one came, I called the day that it arrived and I told them that I had refused delivery on it evidently this company took the product back, but they refused to refund my money so I would not recommend this company to anyone because by the time you talk to the doctors to see if you can take it. They’ve already shipped you another one and it was their fault because I had called Customer Service to cancel. I didn’t think legally you could keep the product and still charge the customer but I guess this company can. To me since I refused it from the post office I didn’t just return it they should have refunded my money. Not acceptable company. Makes you wonder if their product is what it clams. They claimed they can’t help me because I turned it over to my bank, but the problem with that is they had already told me and I have the email to prove it that they won’t help me and that’s why I turned it over to my bank
Response from fatty15.comAug 28, 2026
Hi Laurene, we’re sorry for the frustration and confusion surrounding your subscription and refund. When our team was contacted about the most recent order, a chargeback had already been filed with your bank. Once a payment is formally disputed, the transaction enters the bank’s dispute process and we’re unable to issue a separate refund while that dispute is active. We understand how frustrating this situation was and regret that we weren’t able to resolve it with you directly before the dispute was initiated. Our team is always happy to help with subscription changes or concerns, and we appreciate your feedback. Please reach out with any questions!
Ms W.
I only ordered 1 time. I went in & cancelled my subscription 2 weeks ago!! I received an email this morning that my order was being processed. Fatty 15 took $119.00 out of my bank account which is now in the Red bc of it. They r claiming they won’t refund my money even though order wasn’t shipped yet!! I told them I’m shipping this order back as soon as it arrives!! Fatty 15 is cheating people!! Don’t buy anything from them
Response from fatty15.comAug 28, 2026
Hi Ms. Williams, we’re sorry to hear about your experience. We’ve reviewed our records but haven’t been able to identify an account or customer service interaction matching the details in this review. We’d really like to look into what happened. Please contact us at [email protected] with the email address used for your order or your order number and reference this review so our team can investigate and help. We look forward to hearing from you! In Health, Fatty15 Team
Marie A.
Company should inform customers that although C15 is dairy free, C15 is a component of butter fat and can cause an unpleasant reaction to dairy intolerant people. Also sadly their return policy is only 30 days. $100+ down the drain. 😢
Response from fatty15.comAug 6, 2026
Hi Marie, Thank you for taking the time to share your feedback. We understand there may have been some confusion regarding fatty15's ingredients. As we shared with you directly, fatty15 is dairy-free and lactose-free. While the essential fatty acid C15:0 is naturally found in foods like dairy and butter, the sole ingredient in fatty15 is a pure, vegan-friendly form of C15:0 that does not contain dairy or lactose. If you have any additional questions, we're always happy to help at [email protected]. Best, Ali VP of Customer Experience
Kasey C.
My relationship I contacted this company and requested to stop my subscription and not to charge my account anymore shipments. Well this afternoon they charge me another $125 after I asked them you just continue my shipments. I do not appreciate it and I would certainly warn anyone before giving them your credit card information.
Response from fatty15.comAug 4, 2026
Hi Kasey, Thank you for taking the time to share your feedback. We're sorry to hear about your experience and understand how frustrating unexpected charges can be. After reviewing your account, I can confirm that your subscription was canceled and a full refund was issued prior to this review being posted. We always want our customers to have a positive experience, and we're glad we were able to resolve this for you. If there's anything further we can do to help, please don't hesitate to reach out to us at [email protected]. We're always happy to assist. Best, The fatty15 Team
Lee S.
I cancelled the subscription after taking about half of the original purchase, not feeling or noticing anything different, and that's when the fun began. After noticing a $100+ charge on my card I went to their web site and found my subscription was NOT cancelled. Their "friendly" customer service reps told me via email that it was really cancelled now, they had no record of me cancelling earlier, and to enjoy the product on its way to me since it could not be cancelled and COULD NOT BE RETURNED. I could refuse the unopened box product shipment if I wanted, but they would never refund my purchase. I notice here on Trust Pilot several others with the company's "friendly" customer service.
Response from fatty15.comAug 4, 2026
Hi Lee, Thank you for taking the time to share your feedback. We're very sorry to hear about your experience and understand how frustrating it would be to believe your subscription had been canceled only to see another charge. We'd genuinely like the opportunity to look into what happened and review your account. Unfortunately, we're unable to identify your order based on the name associated with this review. If you're willing, please email us at [email protected] with your order information or the email address associated with your account, and we'll investigate this right away. We appreciate your feedback, as it helps us continue improving both our customer experience and our subscription process. Best, Ali, VP of Customer Experience
Larissa L.
I wouldn't take this type of stuff. It's similar to a fish oil and a heart cardiologist. Let me know that all his open heart patients were ones that took fatty oils and vitamins like this and it clogs your arteries. They just wanna try and make money but stay away from these type of items