fatty15 is transparent about its ingredient and its testing. Whether it’s worth it turns on whether the premise — that C15:0 is an essential fatty acid you’re missing — holds up.
The real cost: about $485 a year
fatty15 (C15:0) costs $119.95 for 90 servings — $1.33 a serving, about $485 a year for daily use (checked July 19, 2026).
What that $1.33 a serving actually buys
A clean, batch-tested 100 mg C15:0 capsule with real transparency. What the price doesn’t buy is a settled premise: C15:0 isn’t recognized as essential, the pivotal trials are small and partly company-funded, and one watchdog said “save your money.”
It might be worth it to you if…
- You’ve read the C15:0 research and want to try it with eyes open
- Single-ingredient transparency matters to you
- The premise is compelling enough to you to fund it
It’s not worth it if…
- You want an established, evidence-backed benefit (the case is unconfirmed)
- You don’t want to pay $199 for the companion blood test
- You’d rather get fatty acids from food
The verdict
Transparent, yes; proven, no — the premise is unconfirmed and independent watchdogs are skeptical. If you want it, go in informed; the alternatives page and full review lay out the case honestly. See the alternatives and the full 48/100 review. Individual needs and results vary; talk with your healthcare provider before starting any supplement.
Frequently asked questions
Is fatty15 (C15:0) worth it?
For most people, no. A genuinely transparent single-ingredient C15:0 capsule — built on an unconfirmed premise, at $1.33–$1.66 a day plus a $199 blood test. Scored 48/100. At $1.33 a serving (about $485 a year), weigh the score (48/100) against your priorities — the fit-and-skip lists above sort it out.
How much does fatty15 (C15:0) cost per year?
About $485 for daily use — $119.95 for 90 servings, $1.33 a serving, checked July 19, 2026.
Is there a better-value alternative to fatty15 (C15:0)?
There’s no direct like-for-like; the honest alternative is dietary fat from food and a wait-and-see on the evidence. The full review and alternatives page lay out the case.
Sources
- fatty15 — product and pricing page ($119.95/90 servings). Checked July 19, 2026.
- The Ingredient Report — fatty15 (C15:0) review (48/100), cost breakdown and alternatives. Checked July 19, 2026.
Update history
- July 19, 2026 — Page first published. Facts checked this date. Next check: August 2026.
Content is for informational purposes only and is not medical or financial advice. Medical disclaimer.