Every day with them counts.
NAD+ Precursor + Collagen for dogs200 mg NR · 1,500 mg collagen per scoop
Won't eat it? Not a fit? Full refund. No return needed.
Why should NAD+ be just for you?
NAD+ supports cellular energy and DNA repair. Now there is one made for them.
Stir it into the meal they already love.
The right amount for their size.
Into wet food, raw, or moistened kibble.
Same time, every day. A small ritual, just the two of you.
Four ingredients. That's the whole list.

No proprietary blends, fillers, binders or added sugars.
Vet-reviewed formula.
"LongTails contains the essential components I look for in a senior dog supplement to support aging gracefully."
The Best Supplement Is the One They'll Actually Eat.
Picky eater? Mix it with a splash of warm water and pour it over dinner like gravy. Start small.

"I have the 3 pickiest dog eaters ever. They needed no convincing with this. They got so excited when they heard me open the container!"
"Every day she looks forward to her dinner bowl. She would eat the entire jar in one sitting if I let her."
"My 16 year old chihuahua: big difference in pep."
Read all reviews
Why a powder?
No baking, no moisture. Dry powder helps keep NR stable.
Grateful for every day with them.
Here is one more good thing for them.
Start their routine