Lujevit Editorial Team
Starting a new supplement comes with a quiet question: how will I know if it's doing anything? This guide gives you an honest, week-by-week picture of your first month with Lujevit. It covers what studies measured, what you might or might not notice, how to keep track, and how to decide what to do on day 30.
The short answer: In clinical studies, daily nicotinamide riboside raised NAD+ levels in the blood within about two weeks. That's a lab measurement, not a feeling. Whether you notice a change in how you feel is less certain, and not noticing one in the first month is normal. The best way to judge is consistent daily use for the full 30 days, plus a simple log.
First, What Lujevit Is (and Isn't) Designed to Do
Lujevit is designed to support the way your cells produce energy, and to support healthy aging.* It starts with 500 mg of nicotinamide riboside chloride, an NAD+ precursor, and adds five compounds that support mitochondrial energy production, antioxidant defense and the cell's natural renewal processes.*
It's important to know what it isn't:
It isn't a stimulant. There's no caffeine and no jolt. Don't expect a buzz 30 minutes after your first dose.
It isn't a quick fix. It works through daily intake over weeks, not a single dose.
It isn't a treatment. It doesn't treat any condition, and it doesn't replace sleep, exercise or medical care.
Starting with the right expectations is the best way to judge your first month fairly.
How Long Does NAD+ Take to Work?
If you're wondering how long NAD supplements take to work, it helps to separate two things.
What changes in your body. Raising NAD+ is the effect that has been measured in human trials. In a placebo-controlled trial, daily nicotinamide riboside raised NAD+ in the blood within two weeks, and the increase lasted for the rest of the eight-week study. Two weeks was the first time point measured; blood levels can start rising sooner.
What you feel. This is harder to predict. Whether higher NAD+ leads to effects people notice in daily life is still being studied, and so far the results have been mixed. Not noticing a change is common, even when lab measures rise. Individual experience varies.
A Realistic Week-by-Week Guide
Week 1: Build the routine
Your only goal this week is consistency: two capsules with your first meal, every day. If you haven't already, pick a spot for the bottle where you'll see it at breakfast (see How to Take Lujevit).
You probably won't notice anything this week, and that's expected. If your stomach feels slightly off, make sure you're taking Lujevit with food.
Week 2: The lab change you can't feel
By now, studies show blood NAD+ is consistently raised with daily use. It's an important biological step, but you likely won't feel it. Keep going and keep your log.
Weeks 3 and 4: Notice, don't hunt
By now Lujevit should be part of your morning. This is a good time to look back at your log, but try not to scan every hour for signs. Energy changes day to day for many reasons, including sleep, stress, workload, alcohol and hormones. One good or bad day doesn't tell you much. A pattern across two weeks tells you more.
NAD Supplement "Before and After": What's Realistic
Search "NAD supplement before and after" and you'll find dramatic photos and transformation stories. We don't publish those, and here's why.
NAD+ works at the cellular level. There's no visible "after" in a mirror, and claims that a supplement makes you look years younger aren't supported by research. Studies of NAD+ precursors measure things like blood NAD+ levels over weeks, not overnight changes in how people look or feel.
A realistic before and after looks more like this:
Before: a counter with several bottles and no clear routine.
After 30 days: one consistent morning habit, a log of how your energy actually changed, and enough information to decide whether to continue.
Possible Side Effects in the First Weeks
In clinical trials of nicotinamide riboside, side effects were similar to placebo, and an eight-week placebo-controlled trial reported no flushing.
As with any new supplement, a few people notice mild digestive discomfort at first. Taking Lujevit with a meal usually helps.
Stop taking Lujevit and talk to your doctor if any discomfort persists. Seek care right away if you notice signs of an allergic reaction, such as rash, swelling or difficulty breathing.
Not recommended for pregnant or nursing women. If you have a medical condition or take medication, consult your physician before use.
How to Track Your First Month
A simple log makes day 30 much easier to judge. Once a day, takes one minute:
What to note | Why |
|---|---|
Did I take Lujevit today? (yes/no) | Consistency is the foundation |
Hours of sleep, and how rested I felt (1–5) | Sleep affects energy more than anything else |
Energy at 10 a.m. and 3 p.m. (1–5) | Mid-afternoon is where many people feel the dip |
Cups of coffee | Context for your energy notes |
Anything unusual (late night, travel, illness, stress) | Context for good and bad days |
If you use a sleep tracker, look at trends rather than nightly scores. Day-to-day readings can be noisy. And keep in mind that a personal log can't separate Lujevit from everything else that changed this month, so read it as a rough guide.
Day 30: How to Decide What's Next
At the end of your first bottle, look at your log and ask yourself three questions:
Did I take it consistently? If you missed many days, the month wasn't a fair test.
Did anything shift across weeks 3 and 4 compared with week 1? Look at your afternoon energy, how you wake up, and your coffee count.
Does the routine fit my life? A supplement only helps if you'll keep taking it.
If you want to continue: most NAD+ studies run for weeks to months, and the three-bottle pack (90 days) gives you a longer trial at a lower price per bottle.
If it's not for you: Lujevit comes with a 30-day money-back guarantee, counted from delivery. Starting the day your order arrives keeps your first month inside that window. See the full terms here.
Frequently Asked Questions
How long do NAD supplements take to work?
In studies, daily nicotinamide riboside raised blood NAD+ levels within about two weeks. Whether and when you notice changes in how you feel varies from person to person, which is why we suggest judging after a full 30 days of consistent use.
What if I don't feel anything after 30 days?
That's common. In studies, blood NAD+ rose with daily use, while effects people could feel weren't consistently found. Look at your log for gradual patterns, and decide whether you want a longer trial or would rather use the guarantee.
Can I take more to feel results faster?
No. Don't exceed two capsules a day unless your healthcare professional advises it. Higher doses raise blood NAD+ more in studies, but that hasn't been shown to make people feel better sooner.
Should I stop if I feel worse?
If you have persistent discomfort, stop taking Lujevit and talk to your doctor. If you're simply having a few tiring days, check your log for other causes, such as sleep, stress or illness, before drawing conclusions.
References
Conze D, Brenner C, Kruger CL. Safety and metabolism of long-term administration of NIAGEN (nicotinamide riboside chloride) in a randomized, double-blind, placebo-controlled clinical trial of healthy overweight adults. Sci Rep. 2019;9:9772. https://doi.org/10.1038/s41598-019-46120-z
Martens CR, et al. Chronic nicotinamide riboside supplementation is well-tolerated and elevates NAD+ in healthy middle-aged and older adults. Nat Commun. 2018;9:1286. https://doi.org/10.1038/s41467-018-03421-7
Damgaard MV, Treebak JT. What is really known about the effects of nicotinamide riboside supplementation in humans. Sci Adv. 2023;9:eadi4862. https://doi.org/10.1126/sciadv.adi4862
Individual results may vary. This article is for educational purposes and is not medical advice.
*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.
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