Nicotinamide riboside (NR) is one of the most studied NAD+ precursors in longevity research, known for increasing levels of the molecule the body needs for cellular energy production and repair. NAD+ declines with age, linked to reduced organ function and higher disease risk, which is part of why raising it draws so much research interest (1). Our earlier guide, How to Take Nicotinamide Riboside?, covered the basics of standard NR dosing. Liposomal versions are now gaining popularity, so does the format actually change anything, including how much you should take?
What Is Liposomal NR?
Liposomal NR uses the same active ingredient as standard NR; only the delivery method changes. The NR molecule is encapsulated in microscopic phospholipid spheres called liposomes, built from the same material as our own cell membranes. These carriers shield NR from breaking down in the stomach and gut before it reaches the bloodstream.
Does NR Actually Need a Delivery Upgrade?
Liposomal formulations tend to matter most when a compound's main weakness is absorption, which is the case for resveratrol and berberine. A pharmacokinetic study found NR to be uniquely and reliably orally bioavailable in both mice and humans, increasing blood NAD+ by as much as 2.7-fold after a single dose (2). That head start means liposomal encapsulation isn't fixing a broken system. What it may offer instead is protection during digestion, helping a steadier amount of NR reach the bloodstream intact.
Who Might Benefit Most From Liposomal NR?
For the average healthy adult, NR doesn't have an absorption problem to fix, so the choice between liposomal and standard comes down to personal digestion rather than which one works better. A few groups do face documented absorption challenges with other nutrients: long-term use of acid-reducing medications like proton pump inhibitors is linked to lower blood levels of vitamin B12, calcium, and magnesium (3), since stomach acid helps release and dissolve those nutrients for absorption, and stomach acid naturally declines with age. Whether that extends to NR isn't established. NR is already absorbed efficiently through a different route than those nutrients, so it's unclear whether reduced stomach acid affects it the same way, or whether liposomal encapsulation would offer any real advantage in these groups.
For most healthy adults without a digestive condition, standard NR and its liposomal counterpart are both reasonable starting points, and the choice comes down to personal preference, tolerance, and budget rather than documented differences in effectiveness.
What the Research Shows So Far
No published trial has directly compared liposomal NR with standard NR. The closest evidence comes from a 2025 trial on NMN, a related precursor that uses the same NAD+ salvage pathway. After four weeks at 350 mg per day, the liposomal group showed a significantly greater rise in blood NAD+ than the non-liposomal group, which didn't differ significantly from placebo (4). It's a small study, five participants per group, and the findings should be read cautiously until larger trials confirm them. Still, the direction lines up with a broader pattern seen in liposomal vitamin C and glutathione research: encapsulation appears to enhance an already effective absorption process rather than overcome poor absorption (5,6).
How Much Should You Take?
An eight-week randomized, placebo-controlled trial found that 100, 300, and 1,000 mg of NR raised blood NAD+ by 22%, 51%, and 142%, a clear dose-response pattern, with all doses well tolerated (7). A separate six-week trial in middle-aged and older adults confirmed that 1,000 mg daily, taken as 500 mg twice daily, was well tolerated and consistently raised NAD+ metabolism (8).
Because it's unclear whether liposomal encapsulation meaningfully changes NR's absorption, there's no established basis for adjusting the dose the way liposomal resveratrol or berberine sometimes are. Doses up to 1,000 mg/day have been shown safe and well tolerated (7,8), so a dose in the low-to-mid hundreds still falls well within that range, even if liposomal delivery increases absorption somewhat. Augment Life's Liposomal NR provides 250 mg of active NR per serving (350 mg total liposomal complex), sitting between the 100 mg and 300 mg doses tested in the dose-response data above.
A few practical points:
- Trial doses have ranged from 100 mg up to 1,000 mg per day.
- Splitting the dose, such as 500 mg twice daily, is how the higher-dose trials (1,000 mg/day total) were actually administered, rather than a single large dose.
- Check the label for the actual NR content, not just the total capsule or liquid weight; liposomal formulations often list a total complex weight that's higher than the active NR dose.
- If you're on other medications or manage a chronic health condition, talk to your doctor before starting NR.
Read more in our previous articles: How to Take Nicotinamide Riboside?, Berberine: Does Liposomal Make a Difference?, Liposomal Resveratrol: Benefits and How Much to Take
The Takeaway
Liposomal NR doesn't need to solve the absorption problem some other supplements have, since NR wasn't struggling to get into the bloodstream in the first place. What liposomal delivery may offer is protection during digestion and steadier uptake. Until dedicated human trials on liposomal NR exist, doses in the 100–300 mg per day range remain the most evidence-backed place to start, whichever delivery format you choose.
Literature Sources
- Covarrubias AJ, Perrone R, Grozio A, Verdin E. NAD+ metabolism and its roles in cellular processes during ageing. Nature Reviews Molecular Cell Biology. 2021;22(2):119–141. https://doi.org/10.1038/s41580-020-00313-x
- Trammell SAJ, Schmidt MS, Weidemann BJ, et al. Nicotinamide riboside is uniquely and orally bioavailable in mice and humans. Nature Communications. 2016;7:12948. https://doi.org/10.1038/ncomms12948
- Khan A, Hussain M, Ahmed A, Nazir N, Malik MK, Saeed N. Effects of long-term proton pump inhibitor use on serum electrolytes and vitamin levels: a quasi-experimental study in Pakistan. Cureus. 2025;17(4):e82102. https://doi.org/10.7759/cureus.82102
- Kawakami S, Maeda Y, Fukuzawa Y. Intervention study comparing blood NAD+ concentrations with liposomal and non-liposomal nicotinamide mononucleotide. Annals of Clinical and Medical Case Reports. 2025;14(11):1–12. https://acmcasereport.org/wp-content/uploads/2025/02/ACMCR-v14-2340-1.pdf
- Purpura M, Jäger R, Godavarthi A, et al. Liposomal vitamin C absorption study. European Journal of Nutrition. 2024;63(8):3037–3046. https://doi.org/10.1007/s00394-024-03487-8
- Sinha R, Sinha I, Facompre N, et al. Liposomal glutathione study. European Journal of Clinical Nutrition. 2018;72:105–111. https://doi.org/10.1038/ejcn.2017.132
- 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. Scientific Reports. 2019;9:9772. https://doi.org/10.1038/s41598-019-46120-z
- Martens CR, Denman BA, Mazzo MR, et al. Chronic nicotinamide riboside supplementation is well-tolerated and elevates NAD+ in healthy middle-aged and older adults. Nature Communications. 2018;9:1286. https://doi.org/10.1038/s41467-018-03421-7
