The first and only dog supplement made with pure C15:0. One packet a day at mealtime.
$49.49was $54.99$1.65 a day · Subscribe and save 10%
More than 99% pure C15:0 (pentadecanoic acid)
Earned the NASC Quality Seal
1Your dog's weight
Size guideDrag to match your dogMedium · 26–50 lb · 30 packets
Same weight bands as Yummy Combs, so your size carries over.
2Purchase option
Medium (26–50 lb) · 30 packets · lasts 30 days at one a day
More than 99% pure C15:0 (pentadecanoic acid), powered by fatty15®. Inactive ingredients: Himalayan cheese, miscanthus grass, natural flavoring, mixed tocopherols.
More on C15:0One packet a day at mealtime. Five sizes, matched to weight.
Size guide
NASC Quality SealNASC Quality Seal
Earned by Longevity15®
Veterinarian-formulatedVeterinarian-formulated
based on years of peer-reviewed studies of C15:0
Made in the USAMade in the USA
One packet a day, 30 per box
60-Day Tail-Wag Guarantee60-Day Tail-Wag Guarantee
Try it for 60 days. Full refund, no questions asked.
Why C15:0
Longevity15® is the first and only dog supplement made with pure C15:0. Dogs can't make this crucial fatty acid on their own.
Dogs can't make this crucial fatty acid on their own.Strengthens cell membranes and activates PPAR and AMPK pathways to support metabolism, liver and red blood cell health, along with healthy cholesterol and glucose handling.
How to give it
Five sizes, matched to weight. Each box holds 30 packets, one a day.
| Size | Per box (30 packets) | Subscribe and save | Per day |
|---|---|---|---|
| $44.99 | $40.49 | $1.35 | |
| $49.99 | $44.99 | $1.50 | |
| $54.99 | $49.49 | $1.65 | |
| $69.99 | $62.99 | $2.10 | |
| $74.99 | $67.49 | $2.25 |
Subscribe and save 10%. Ships every 30 days. Cancel anytime.
Same weight bands as Yummy Combs, so your size carries over.
Give orally, one packet per day at meal time.
Subscribe and save 10%. Ships every 30 days. Cancel anytime.
What's in a packet
Powered by fatty15®. Veterinarian-formulated based on years of peer-reviewed studies of C15:0.
| Active ingredient | C15:0 (pentadecanoic acid), more than 99% pure |
|---|---|
| Inactive ingredients | Himalayan cheese, miscanthus grass, natural flavoring, mixed tocopherols (preservative) |
| Directions | Give orally, one packet per day at meal time. |
| For use in | Dogs only |
| Quality | NASC Quality Seal |
| Made in | the USA |
Supports
Shown to deliver 3X more cellular benefits than omega-3s.
Yummy Combs® and Longevity15®
Yummy Combs® removes hardened tartar and freshens breath. Longevity15® strengthens cell membranes.
*60-day clinical study led by a board-certified veterinary dentist; 25+ breeds, one treat daily. Individual results may vary.
Pairs with Yummy Combs®
Yummy Combs® removes hardened tartar and freshens breath. Same weight bands as Longevity15, so your size carries over.
Sized for Medium (26–50 lb) · 24oz bag
$44.98was $49.98Subscribe and save 10% · every 30 days
*60-day clinical study led by a board-certified veterinary dentist; 25+ breeds, one treat daily. Individual results may vary.
Questions
C15:0, sizing, using it with Yummy Combs and the guarantee.
See every questionLongevity15® is the first and only dog supplement made with pure C15:0. Each packet contains more than 99% pure C15:0 (pentadecanoic acid), powered by fatty15®. Dogs can't make this crucial fatty acid on their own.
Give orally, one packet per day at meal time. Each box holds 30 packets, one a day.
Five sizes, matched to weight: X-Small 5.5–12 lb, Small 13–25 lb, Medium 26–50 lb, Large 51–100 lb and X-Large 100+ lb. Same weight bands as Yummy Combs, so your size carries over.
See the size guideLongevity15® works alongside omega-3s.
For use in dogs only. If your dog's condition worsens or does not improve, stop giving it and consult your veterinarian. Safe use in pregnant animals or animals intended for breeding has not been proven.
Yummy Combs®: one treat a day, sized to your dog's weight (if your dog gulps or chews hard, go one size up). Chicken is for dogs 6 months and older; Fish & Egg can be fed to younger dogs. Longevity15®: one packet a day at mealtime, sized XS–XL by weight.
60-Day Tail-Wag Guarantee: try it for 60 days. Full refund, no questions asked. It covers Yummy Combs® and Longevity15®. Refunds take 5–7 business days, depending on your payment method.
Yes. Your subscription is totally flexible. Skip a shipment, change your frequency, pause anytime, or cancel whenever you need. You’re in control of every delivery.
We’ll email you 7 days before each subscription order bills. Once it bills, you have 72 hours to make final changes or cancel for a full refund. To change your dog’s size or flavor, contact us and we’ll update it for you.
One packet a day at mealtime. Subscribe and save 10%. Ships every 30 days. Cancel anytime.
*60-day clinical study led by a board-certified veterinary dentist; 25+ breeds, one treat daily. Individual results may vary.
Yummy Combs® is VOHC Accepted® for tartar control.
Testimonials reflect individual experiences and are not guaranteed outcomes.
Yummy Combs is a treat, not a substitute for veterinary care. If your dog has existing dental disease, consult your veterinarian before starting a new dental routine.
The Chicken recipe is for dogs 6 months and older; Fish & Egg can be fed to younger dogs. Feed the right size for your dog's weight. If your dog gulps or chews hard, go one size up. Supervise treat time and provide fresh water.
