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fatty15 reviewProducts, prices, shipping and returns

fatty15 sells pure C15:0 supplements for adults and kids, backed by 150+ peer-reviewed studies and a 30-day money-back guarantee.

Read from fatty15.com on 15 Oct 2026. Every price, percentage and period on this page was checked against the shop's own pages.

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$149.95fatty15 Starter Kit 90-day Supply

$79.95Fatty15 Gummies for Adults

$64.95Fatty15 Gummies for Kids

$20The Longevity Nutrient Book

$35The Encinitas Hat

$35The La Jolla T-Shirt - SUPIMA® Cotton

$10fatty15 replacement glass bottle

$15The Longevity Nutrient Book Paperback

$119.95~~$149.95~~fatty15 Starter Kit 90-day Supply

$15Travel Tin - Navy

$35The Del Mar T-Shirt - SUPIMA® Cotton

$35The Coronado T-Shirt - SUPIMA® Cotton

Names, prices and pictures as shown at fatty15.com on 15 Oct 2026. Prices change: the shop's own page is the one that counts.

fatty15 is a science-backed supplement brand built around C15:0, a fatty acid it describes as the longevity nutrient. It sells C15:0 supplements for adults and kids, along with a book and branded merchandise, for people who want to support long-term cellular health.

What stands out

Original Capsules and gummies for adults and kids, all built around pure C15:0
30-day money-back guarantee on first-time eligible purchases of capsules or gummies
30+ awards and 150+ peer-reviewed studies cited by the brand
Starter kit with a 90-day supply in a reusable glass bottle, followed by refill pouches
Returned capsule pouches are donated to marine mammal care programs

How fatty15 compares

Its terms beside those of the 118 health and nutrition shops read on this site so far. Every figure is taken from that shop's own pages.

30 days to send things back: longer than 68 of the 94 health and nutrition shops read here.

Shop	Returns window	Free shipping from	Prices seen
Healf	365 days	£50	£5 to £1,199.99
Vision Direct	365 days	£59	£17.99 to £102.49
Zapply	365 days	£50	£9.95 to £359.64
Loop Earplugs	100 days	€39	€0.99 to €179.75
Perifit	100 days	$35	$17.99 to $538.80
Elavate Collagen	90 days	–	£1.30 to £387
Promix Nutrition	90 days	–	$24 to $239.36
REMplenish	90 days	$99	$2.99 to $134.95
Saalt	90 days	$79	$2 to $200
fatty15	30 days	–	$10 to $459.95

All 118 health and nutrition shops

Three more readings of fatty15

Each was given the same pages of fatty15.com and asked what the brand does well. None of them has seen or used the products; software then checked every figure they wrote against those pages.

LongCat 2.5 by Meituan

Science-backed C15:0 for cellular health

Fatty15 sells a C15:0 fatty acid supplement aimed at healthy aging, offered as capsules and gummies for adults and kids, plus a practitioner formula. The brand traces its science to dolphin health research by its founders, a veterinary epidemiologist and a military physician, and lists awards including a CNBC Changemaker Award and a Newsweek Readers' Choice Award. A 90-day starter kit costs 149.95 USD, with gummies at 79.95 USD for adults and 64.95 USD for kids. First-time purchases carry a 30-day money-back guarantee, and subscriptions can be cancelled anytime. Returned capsules are donated to marine mammal care programs.

Solar Mini 4 by Upstage

C15:0 cellular health supplement

Fatty15 offers C15:0 supplements in capsules, adult gummies, and kid gummies, plus a starter kit, travel tins, and apparel. The brand describes itself as science-backed and pure, with founders holding scientific and medical credentials. It provides a 30-day money-back guarantee for first-time eligible purchases of capsules or gummies, with refunds requested within 30 days of the first purchase order date. International orders may incur customs duties and taxes, which the customer is responsible for. The site lists a trust score of 9.88 and several awards, but no customer reviews or purchase testing appear in the sources. This brand suits adults and children seeking a daily cellular health supplement, with options for subscription or single purchase.

Laguna S 2.1 by Poolside

Science-backed cellular health

Fatty15 offers C15:0 fatty acid supplements in capsule and gummy forms for adults and kids, plus related merchandise. The brand emphasizes its scientific foundation, citing dolphin research showing a 72% improvement in cellular stability. Products include original capsules, sugar-free adult gummies, kids' gummies, and a 90-day starter kit. The company provides a 30-day money-back guarantee on first-time capsule or gummy purchases, with returns processed through their support team. Shipping policies note that international customers may be responsible for customs duties and taxes. The brand also operates a subscription service with flexible management options.

Watch

fatty15: from its home pageVideo by fatty15.

What fatty15 sells

fatty15 sells Original Capsules, its most popular C15:0 supplement, and Gummies for Adults, a sugar-free gummy format. It also offers Gummies for Kids in mixed berry, developed for children, and an Advanced Formula extra-strength product available only through approved healthcare practitioners and Fullscript. Beyond supplements, fatty15 sells The Longevity Nutrient book, travel tins, tees, a hat, a tote, a replacement glass bottle and gift cards.

fatty15 prices

fatty15 prices its products from 10 USD to 459.95 USD across its catalogue. The fatty15 Starter Kit 90-day supply is listed at 119.95 USD and 149.95 USD. Fatty15 Gummies for Adults are 79.95 USD and Fatty15 Gummies for Kids are 64.95 USD. The Longevity Nutrient Book is 20 USD in hardcover and 15 USD in paperback, while travel tins, the Encinitas Hat and the SUPIMA cotton tees are 15 to 35 USD.

fatty15 shipping

fatty15 ships from the United States, and orders shipped outside the United States may be subject to customs import duties and taxes levied by the destination country, which are the customer’s responsibility in addition to shipping cost. For Canadian customers, fatty15 calculates and collects estimated taxes and duties at checkout for goods shipped by means other than through the United States Postal Service; goods shipped through USPS may have duties and taxes collected by fatty15 or, under regular USPS service, paid by the customer on delivery.

fatty15 returns

fatty15 offers a 30-day money-back guarantee on first-time eligible purchases of capsules or gummies, including one 30-Day Trial Kit, one 90-Day Starter Kit or one Gummies Pouch. Requests must be submitted within 30 days of the first purchase order date, and the guarantee applies only to purchases made directly on fatty15.com; repeat purchases, 6-Month and Annual Supply Kits, subscription refills and orders placed after the initial purchase are not eligible. Damaged or defective products can be reported within 30 days of delivery for a replacement or refund at no cost, and returned capsule pouches are donated to marine mammal care programs.

Discounts and offers at fatty15

fatty15 operates a subscription service in which a starter kit with a 90-day supply of capsules is followed by recurring refill pouches, and it also offers a 90-day single purchase for customers who prefer not to subscribe. Customers can manage their shipment dates, addresses and payment methods from their account page. The sources state no discount codes, student discounts, sale or outlet sections, and no free-shipping threshold.

Good to know about fatty15

fatty15 was founded by Stephanie Venn-Watson, DVM, MPH, and Eric Venn-Watson, MD, MBA, whose work on dolphin health led to the C15:0 discovery. The brand cites 10+ years of research collaboration with the U.S. Navy, 30+ awards, 150+ peer-reviewed studies and 60+ patents. Its studies support that fatty15 can take up to 3 months to achieve its initial health benefits, which is why the starter kit holds a 90-day supply.

What was read

These pages of fatty15’s own website, on 15 October 2026:

This page sets out what fatty15 offers, from what it publishes about itself. No product was bought or tested.

In the words of fatty15

We offer a 30-day money-back guarantee on first-time purchases of the following product types

fatty15, Returns policy

Request within 30 days of your first purchase order date.

fatty15, Returns policy

It applies only to eligible purchases made directly on fatty15.com.

fatty15, Returns policy

Orders shipped outside the United States may be subject to customs import duties and/or taxes based on the destination country.

fatty15, Shipping policy

Short answers

What does fatty15 sell?

fatty15 sells C15:0 supplements including Original Capsules, Gummies for Adults and Gummies for Kids, plus The Longevity Nutrient book, travel tins, tees, a hat, a tote and gift cards.

How long do I have to return a fatty15 product?

fatty15 offers a 30-day money-back guarantee on first-time eligible purchases of capsules or gummies, with requests due within 30 days of the first purchase order date.

Does fatty15 ship internationally?

fatty15 ships from the United States, and orders shipped outside the United States may be subject to customs duties and taxes that are the customer's responsibility.

How does the fatty15 subscription work?

fatty15 sends a starter kit with a 90-day supply of capsules, followed by recurring refill pouches, and customers can change their ship date or frequency from their account page.

Can I buy fatty15 without a subscription?

fatty15 offers a 90-day single purchase as an alternative to its subscription, and subscriptions can be cancelled at any time from the account page.

What if my fatty15 order arrives damaged?

fatty15 asks customers to contact its team within 30 days of delivery about damaged or defective products, and a confirmed case is resolved with a replacement or refund at no cost.

See it at fatty15

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