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Younger blood test. Twice a week.
47% biologically younger · 3 months Citruslabs trial · 3-month follow-up
Not just NAD+. A combination of nicotinamide riboside, resveratrol-enriched yeast, rice ceramides and a fruit antioxidant blend, in one liquid shot. Twice a week. The exact stack tested in our 3-month clinical trial.
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$1.33/day · less than a coffee
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See the full clinical data"My blood test came back showing I was biologically 3 years younger than when I started. Energy lasts past 3pm now."
47%
Younger biological age
3-month follow-up
19/19
Aging markers improved
All statistically significant
+78%
Energy satisfaction
3 months vs baseline
+43%
Skin hydration
3 months vs baseline
What happens in 3 months
A blood test reads how your cells are aging. Not how old you are on paper. After 3 months in the Citruslabs trial, 47% of women in the daily-use arm tested biologically younger than when they started.
Most NAD+ products give you NAD+ alone. We pair nicotinamide riboside with resveratrol-enriched yeast, rice ceramides and a fruit antioxidant blend in the same bottle. The combination is what your cells actually use together.
Citruslabs ran the trial. 47% of women in the daily-use arm came out biologically younger by month 3. Not a feeling. A measurement.
+78% more satisfied with their energy by month 3. +57% better at maintaining energy through the day. Less fatigue, more focus, fewer crashes.
A liquid you drink in 10 seconds. Sweet without added sugar, 18 calories. Twice a week is light enough to actually keep up. Skin holds water, energy holds the day.
The receipts
Citruslabs designed and ran the trials independently. A board-certified dermatologist scored the photos blind. An outside statistician confirmed nothing here is chance.
47%
Younger biological age
Citruslabs case study · 3-month follow-up
19/19
Aging markers improved
All changes outside the margin of chance
+78%
More satisfied with energy
3 months vs baseline
+52%
Body aging satisfaction
3 months vs baseline
"When half of women drop their biological age in 3 months, you stop calling that a feeling. You call it measurement."
Inside the bottle
Most NAD+ products give you NAD+ on its own. We paired it with resveratrol-enriched yeast, rice ceramides and a fruit antioxidant family. The combination is the formula women drank in our Citruslabs trial.
Nicotinamide riboside chloride paired with resveratrol-enriched yeast. The two precursors your body uses to keep cellular fuel running.
Rice-seed ceramides. Naturally occurring lipids that help the skin barrier hold onto water.
White Versailles currant plus a botanical family of blood orange, spinach, grape seed and red wine. Polyphenols that help protect cells from oxidative stress.
Plus 18 calories per bottle. Zero added sugar. Made in the USA.
The routine
The recommended cadence for steady NAD+ support without overthinking it.
Step 01
Shake the bottle. The botanicals settle naturally because there are no fillers holding them in place.
Step 02
Drink it straight. Cold over ice or at room temperature. Chase with water if you like.
Step 03
Pick two days that stick to your week. Stay with it for 3 months. That is when the numbers in our clinical trial moved.
Verified customers reviews
This is so easy to drink and tastes amazing! I love how convenient the packaging is. Super easy to open and perfect for travel. Happy Aging NAD has quickly become a must-have in my daily routine!
I’ve been taking NAD in capsule but nothing gives me the energy boost of these shots. I felt it in the gym the very same day!!
I couldn’t recommend the longevity shots more. I’ve been taking it for 5 months now and I have so much more energy! It also tastes great and so much better than taking lots of pills
I've been using the Longevity Shot for a few weeks and I love the results. My skin feels more hydrated and the fine lines are less visible. I feel more confident!
I started using the Longevity Shot a month ago and I already see differences. My energy has increased and my skin feels firmer. It's great to find something that really works!
I’ve been drinking the NAD longevity shots twice a week, and the difference is unreal. My energy is more stable, my focus is sharper, and even my recovery from workouts feels faster. It’s like a natural recharge for my cells,supporting anti-aging from the inside out. Honestly, it’s one of the best decisions I’ve made for my health and longevity.
Been taking this shot for about 4 months now and I feel great
So far so good! I like the dark glass bottle, and I really like the taste of the shot. The results come after taking/eating something regularly for couple of months. So we will see.
After just two months of taking this, I’ve already noticed a big difference in my energy and skin. I’ve been getting so many compliments — it’s a total game changer and tastes amazing!
Loving the results after taking the NAD shots for almost two months. I am a working mother of two so I’m always looking for an energy boost. The NAD shots provide a sustained energized feeling without the crash from coffee. My skin also looks more glowy and looks more clear. Looking forward to sustained and improved results.
FAQ
More on the methodology and full data at /pages/clinical-studies. Anything else? hello@happyaging.com.
Citruslabs, an independent consumer-research lab in Santa Monica and Las Vegas. We paid for the studies. They ran them independently.
DNA methylation patterns. These are small chemical tags on your DNA that scientists use to estimate how fast your body is aging. Not how old you are on paper, but how old your cells appear to be functioning.
Nicotinamide adenine dinucleotide. A molecule every cell uses to make energy. NAD+ levels drop with age. The shot delivers nicotinamide riboside (a direct NAD+ precursor) plus a resveratrol-enriched yeast in the same bottle.
One bottle, twice a week. That is our recommended cadence. The clinical trial included both a daily arm and a twice-weekly arm, and we set the everyday recommendation at twice a week for steady NAD+ support without daily friction.
Yes. The Citruslabs case study is published at citruslabs.com. The full data, methodology, and every measurement live on our clinical studies page.
Email us within 30 days for a full refund. No return necessary. Keep what's left of the bottles.
NAD+ Longevity Shot
$240 · 6-month supply
