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BARK&SPARK

NAD+ for Dogs — Advanced Longevity Formula

90 Soft Chews · Peanut Butter Flavor · 11 oz
★★★★★ 4.8 (2,000+ happy dogs)

NAD+ levels decline with age, affecting energy, metabolism, and cognitive function. Our formula combines Nicotinamide (a proven NAD+ precursor) with Resveratrol, Quercetin, and powerful antioxidants to support cellular energy, brain health, and healthy aging — so your dog stays active, alert, and full of life.

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$29.74
$34.99
$0.33/chew
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Is this right for my dog?
Yes — our NAD+ formula is designed for adult dogs of all breeds and sizes. It's especially beneficial for dogs 5+ years old showing signs of aging: lower energy, stiffness, or cognitive changes. Dosing is weight-based (see label).
How much do I give my dog?
Follow the weight-based dosing chart on the label. Give chews once daily, ideally at the same time each day for consistent cellular support. Small dogs (under 25 lbs): 1 chew. Medium (25-50 lbs): 2 chews. Large (50+ lbs): 3 chews.
What's the active formula?
Nicotinamide (NAD+ precursor), Resveratrol (from Japanese Knotweed), Quercetin (antioxidant support), Vitamin C, Coconut Oil, and Flaxseed — all in a palatable peanut butter soft chew. Made in the USA in a GMP-certified, FDA-registered facility.
When will I see results?
Most dog owners notice increased energy and alertness within 2-4 weeks. Joint comfort and mobility improvements typically appear within 4-6 weeks. For best results, use consistently for 90+ days — cellular benefits compound over time.
Ingredients You Can Trust
Science-backed actives in a clean, palatable chew. No corn, soy, or artificial fillers.
🧬

Nicotinamide

Proven NAD+ precursor that supports cellular energy production and healthy aging at the molecular level.

🍇

Resveratrol

From Japanese Knotweed. Powerful antioxidant that supports cardiovascular health and longevity pathways.

🌿

Quercetin

Plant flavonoid with potent anti-inflammatory properties that helps manage everyday oxidative stress.

🍊

Vitamin C

Essential antioxidant that supports immune function and collagen production for joint health.

🥥

Coconut Oil

Wholesome MCT fats that support brain function, energy metabolism, and healthy skin & coat.

🌾

Flaxseed

Rich in plant-based Omega-3 fatty acids for anti-inflammatory support and healthy aging.

2,500+
Peer-Reviewed Studies

Our key ingredients are backed by thousands of published scientific studies.

100%
Batch Tested

Every production run undergoes third-party testing for purity & potency.

2,000+
Happy Dogs

Loved by thousands of pet owners with verified five-star reviews.

Real Results, Real Dogs
Based on owner-reported outcomes after consistent daily use.
94%
reported improved cognitive function & alertness
98%
reported increased energy & activity levels
*Based on customer survey, 2025 (n=200+)
The Comeback Story
What consistent daily use looks like — from slowing down to keeping up.
Before
5-7k
steps/day

Slowing Down

Sleeping most of the day, reluctant to walk, noticeable stiffness getting up. The spark that used to be there was fading.

Week 2
7-9k
steps/day

First Signs

A little more pep in the morning. Getting up easier, showing interest in walks again. Small changes, but noticeable.

Month 1
10-12k
steps/day

The Spark Returns

Actively asking for walks, playing with toys again, brighter eyes and more engagement. Friends and family start to notice.

Month 3
12-14k
steps/day

Keeping Up

Back to running the backyard, keeping pace on hikes, and acting years younger. Still a senior, but thriving like one who's not ready to slow down.

Still Have Questions?
What is NAD+ and why does my dog need it?
NAD+ (Nicotinamide Adenine Dinucleotide) is a molecule found in every cell that's essential for energy production, DNA repair, and cellular communication. As dogs age, NAD+ levels naturally decline — leading to lower energy, slower metabolism, and reduced cognitive function. Our formula provides NAD+ precursors that help your dog's cells produce more NAD+, supporting vitality from the cellular level up.
At what age should I start my dog on this supplement?
You can start any adult dog (1+ years). Starting in the prime years (1-5) helps maintain vitality before aging signs appear. For senior dogs (7+), it helps support energy and cognitive function that may already be declining. It's never too early or too late to start.
Is it safe alongside other supplements or medications?
Yes — our formula is designed for daily, long-term use and generally pairs well with other supplements and a normal diet. It's made in a GMP-certified, FDA-registered facility with no artificial additives. If your dog has a medical condition or takes medication, check with your vet before starting — as you would with any new supplement.
My dog is a picky eater — will they like it?
Our soft chews come in a real peanut butter flavor that dogs love — most picky eaters take to them immediately. The soft, palatable texture means no chasing your dog around the kitchen. And if your dog doesn't love them, you're covered by our 90-day money-back guarantee.
Can I cancel my subscription anytime?
Absolutely. No commitments, no hidden fees, no hoops to jump through. You can change your delivery frequency, pause, or cancel anytime from your account — or just contact us. We'd rather earn your loyalty than lock you in.
What if I'm not satisfied?
Every order comes with a 90-day money-back guarantee. If you're not happy for any reason, we'll make it right — no questions asked. We want you to have a full 90 days to see how your dog responds, because cellular benefits build over time.
Where is it made?
Made in the USA in a GMP-certified, FDA-registered facility. Every batch is independently third-party tested for purity and potency. No corn, soy, wheat, or artificial fillers. Just clean, science-backed ingredients.
What Dog Owners Are Saying
Real reviews from real pet parents.
★★★★★
Jessica M.
Verified Buyer
"My 11-year-old Lab was sleeping all day. Three weeks on these and she's actually grabbing her toy again. Wasn't expecting much honestly — so glad I tried."
★★★★★
Tom R.
Verified Buyer
"Bear is 8, German Shepherd, started getting stiff after morning walks. Six weeks in and he's bouncing around like he used to. Wife noticed before I did."
★★★★★
Amanda K.
Verified Buyer
"My French Bulldog refuses everything. I mean EVERYTHING. She inhaled this one. Coat looks shinier too, about a month in. Reordering for sure."
★★★★★
Greg P.
Verified Buyer
"Got these for my 9yr old Golden after his vet mentioned he was slowing down. Been about 5 weeks. He's keeping up on walks better and seems more alert."
Ready to Give Your Dog the Gift of Vitality?
Join 2,000+ dog owners who chose to support their dog's healthy aging. Risk-free with our 90-day guarantee.