The years took pieces of your life. Take them back.
The energy that used to last into the evening.
The sharpness in the middle of a good conversation.
A whole piece of the day you used to run yourself.
Nobody agreed to hand those over. Your body still knows how to run the day. It ran low on the one fuel it needs to do the work, and that part, you can do something about.
Take 180 days to feel your energy come back. The clock starts the day it arrives.
Two daily capsules that support the body's natural cellular repair processes and healthy cellular energy as you age.
- Three named actives
- Two capsules a day
- 180 days to feel it, from delivery
It is not the calendar. It is the fuel.
The energy that used to last into the evening, gone by mid-afternoon. The name of someone you have known for years, sitting just out of reach. The stairs taken slower. The small daily choices that, one after another, quietly stopped being yours. You have been told this is just the calendar. That it does not get better from here. That the smart thing now is to want a little less. That is wrong.
You were not built to want less. And the fuel your repair genes run on is a thing that can be put back.
Your repair genes did not die. They ran out of fuel.
That fuel is called NAD+. Your repair genes cannot do a thing without it. That is not a theory. It is how the body works.
Here is what researchers measured in people. In older adults, there was less of that fuel in the brain and in the muscle. In whole blood, the level holds steady as you age. So a routine blood test can read normal while the parts that carry your day run low. (Population-level findings in separate human studies.)
That gap is why MAINSTAY Vivacelle is built around the fuel, plus the two plant helpers your repair genes rely on. Two capsules a day put the fuel back.
See the whole story — why it ran out, and how to put it back. →*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Three actives. One fuel story.
- NAD+
- the fuel your repair genes run on. They cannot do a thing without it.
- Quercetin
- a plant flavonoid. In cell studies, it blocks the enzyme that burns the fuel.
- Japanese knotweed extract
- standardized to resveratrol. In cell work, it acts as the key that switches the repair gene on. The fuel and the key, together.
60 capsules a bottle. Two a day, a 30-day supply. (Ingredient names shown; we do not print milligram figures.)
Two capsules with breakfast. Every day.
Keep the bottle where you will see it in the morning — next to the coffee, or by your walking shoes. Two capsules with breakfast is all it asks. The fuel only works if it keeps coming, so take it every day.
If you take other medications, show the label to your pharmacist before you start.
Keep walking. The walking body runs on a fuel too — this puts it back, alongside the walk, never instead of it.
MAINSTAY Vivacelle
Take back the energy, the sharpness, and the day the years took. Your repair genes did not die. They ran out of fuel.
- 1 Bottle — 1 Month $69 per bottle
$197$69 - 2 Bottles — 2 Months $59 per bottle · Save $276
$394$118 - 3 Bottles — 3 Months Best Value$49 per bottle · SAVE $444
$591$147
Take 180 days to feel your energy come back.
The clock starts the day your order arrives, not the day you place it. If you are not glad you tried it, tell us and we will refund you. That is the confidence we have in what the fuel does.
How the 180 days work →