Boops Pets vs Longevity15 for Dogs: Which Senior Formula Actually Earns Its Price?

By Richard Funk, DVM, CVA

✓ Medically reviewed by Richard Funk, DVM, CVA — August 17, 2026 For general education — not a substitute for veterinary care.

Longevity · August 18, 2026 · 7 min read

One of these two supplements names its actives and doses on the label; the other asks you to trust a percentage.

120 mg. That’s the dose of Nicotinamide Riboside in a two-chew serving of Boops Pets Longevity & Healthy Aging — the kind of number I look for before I trust anything else on a label.

I start every longevity-supplement evaluation the same place I start a lameness exam: at the specifics, not the story. A dog’s decline shows up as a pattern of small facts — which leg unloads first, how the gait changes after rest, what the owner noticed and when. A supplement label deserves the same treatment. So when a client asks me to compare Boops Pets against Longevity15, I flip both bags over before I say a word about either one.

What each product is actually asking you to trust

Before the ingredient talk, here’s the scorecard I’d hand an owner standing in the aisle, deciding between two very different products:

• Disclosed actives and doses — Boops states five named actives per serving; Longevity15 discloses none.
• Mechanism — Boops targets the NAD+ pathway with a precursor plus two antioxidants; Longevity15 targets a single fatty acid pathway.
• Format simplicity — Longevity15 wins here: one active, one sachet, sized by weight band.
• Price transparency — Longevity15’s cost is easy to find and calculate; Boops’s per-serving cost requires checking the product page.
• Third-party verification — Boops carries a NASC Quality Seal and independent Eurofins testing; I could not verify equivalent third-party testing for Longevity15.

Each of those criteria gets its own explanation below, in the order I’d actually walk an owner through it.

Early: what’s on the label, and what isn’t

Boops Pets Longevity & Healthy Aging is an air-dried soft chew, 90 count per bag, built around Nicotinamide Riboside (NR) as the NAD+ precursor. Per two-chew serving it lists Nicotinamide Riboside — 120 mg, Quercetin — 100 mg, Resveratrol — 40 mg, Vitamin C — 100 mg, and Vitamin B3 (Niacinamide) — 50 mg. NAD+ levels decline with age, and NR is understood to help the body make the NAD+ it uses for everyday cellular energy metabolism — that’s structure/function language, not a cure claim, and it’s worth saying plainly rather than dressing it up.

Longevity15, made by Pet’s Best Life, takes a different approach entirely. According to a detailed comparison published by La Petite Labs, the formula centers on FA15 — pentadecanoic acid, or C15, an odd-chain saturated fatty acid the brand claims is “above 99.5%” pure. It comes in pre-measured sachets sorted into five weight bands, one packet at mealtime. The comparison also notes a real gap: the label doesn’t disclose milligrams of C15 per sachet, which is a meaningful omission for a supplement built around a single active. It costs $54.99 for a 30-count box — about $1.83 a day, and that price point is genuinely competitive.

That’s Longevity15’s honest edge: it’s simple, it’s affordably dosed by weight, and if an owner wants to isolate one variable and skip a multi-ingredient stack, that narrow focus is a real, legitimate use case — even with the dose gap on the label.

Mid-life: the case I keep coming back to

In my practice, the dog I think about most on this exact question was a 9-year-old spayed female Labrador named Coco, 68 pounds, whose owner brought her in not for a limp but for a vague complaint: “she just seems tired.” Coco still went up the stairs fine and still jumped onto the couch, but she’d stopped meeting her owner at the door most evenings, and her enthusiasm for the evening walk had dropped from eager to merely willing over about two months. Nothing on orthopedic exam pointed to pain. Blood work was unremarkable for her age. The owner had already tried a joint chew from the grocery store with no change, and she was choosing between two very different bags on her kitchen counter — one with a five-ingredient panel and named doses, one with a single fatty acid and no disclosed amount. She wanted to know which one was actually built to do something, and which one was just betting on a good name. That conversation is where most of my thinking on this comparison comes from.

Later: quercetin, resveratrol, and where the antioxidant claims actually stand

Quercetin and resveratrol ride along with NR in the Boops formula as “the antioxidant supporting cast,” and it’s worth being precise about what the evidence says rather than what marketing implies. Boops states plainly that resveratrol (40 mg) and quercetin (100 mg) are antioxidants that support cellular health and vitality — a structure/function claim, not a disease claim. The underlying research is still early-stage. A quercetin study noted that “QF and unformulated Q, as well as NAC and ascorbic acid, at the concentrations used, did not affect the feeding behavior of the worms,” an in-vitro finding published in Pharmaceuticals — informative for mechanism, not proof of an outcome in a dog. Similarly, a resveratrol study in Phytomedicine found that “embryonic exposure to ER50 accelerated pupation and adult emergence but shortened adult lifespan” in an insect model at 50 μg/ml — a dose-and-species-specific result that doesn’t translate directly to a senior dog’s daily chew. I keep both of those studies in mind precisely so I don’t overstate what a 40 mg or 100 mg dose in a chew is actually doing.

Longevity15’s antioxidant credentials aren’t really the point — its formula doesn’t lean on quercetin or resveratrol at all. The single-fatty-acid approach means fewer variables to track, which some owners genuinely prefer, but it also means you’re relying on one un-dosed ingredient rather than a named, quantified stack.

Owners considering either product often land here after reading about NAD+ precursor chews for a dog whose energy dropped after turning 8 or wondering whether they can crush a longevity chew and sprinkle it on senior dog food for a picky eater. Both are reasonable next questions once you’ve settled on a product.

What third-party verification actually tells you

Boops Pets holds a NASC Quality Seal as a NASC Primary Supplier Member, meaning its facilities passed an independent audit — that’s a real, verifiable credential, though it’s an industry self-regulatory seal, not an FDA approval or a guarantee of outcome. The chews are also independently third-party tested for purity and potency, and manufactured in the USA in an FDA-registered, GMP-compliant facility with no corn, soy, or artificial fillers. In an independent owner survey (March 2025, n=193), 97.8% of respondents reported a visible improvement after the first jar, with 94% reporting a change in cognitive function and 98% in energy — that’s owner-reported experience, not a clinical trial, and I’d frame it to a client exactly that way.

I did not find equivalent public third-party testing documentation for Longevity15 in the material I reviewed. That doesn’t mean it doesn’t exist — it means I can’t verify it, so I’m not going to credit it.

The exam-room version of this decision

The owners I see most often aren’t choosing between “good” and “bad” — they’re choosing between two reasonably built products with different philosophies, and my job is to help them pick the one that fits their dog and their tolerance for ambiguity. If Coco’s owner had wanted the simplest possible intervention with the smallest number of moving parts, Longevity15’s single-fatty-acid sachet was a legitimate, low-friction choice at a fair price, dose-disclosure gap and all. What she actually wanted — and what most of my longevity-supplement clients want — was to see the doses on the label and understand what each one was doing. That’s what sent her home with the chews instead. I keep expectations realistic with every client on this topic: a supplement may help support cellular energy and antioxidant status in an aging dog. It is not going to turn back the clock, and nothing in either product’s evidence base claims otherwise. Watching a formerly resigned senior meet her owner at the door again over the following weeks was a good outcome — one case, not a study, and I’m careful to say so.

Owners weighing a longevity chew against a joint or muscle problem instead should start with what a dog muscle supplement can and can’t do for an aging body before assuming NAD+ support is the right lane.

Bottom line

Longevity15 wins on price transparency and single-ingredient simplicity — a real, specific edge for owners who want to isolate one variable. Boops Pets wins on nearly everything else that matters to me clinically: named doses, third-party testing, a NASC seal, and a formula built around a well-characterized NAD+ pathway. For most senior dogs and most owners asking me this question, that combination makes Boops the one I’d actually recommend, even with Longevity15 sitting there as a fair, honestly cheaper option in its own narrow lane.

These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure, or prevent any disease.