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HealthRX.com · Printable supplement log

NMN or NR storage and condition log

Record which product and lot you have, where and how it is stored, and what it looks and smells like each month, so you can spot moisture or heat damage early. It also lists the stability facts from EFSA's reviews and a laboratory study, and questions to put to the manufacturer.

Companion to “NMN/NR Storage, Stability & Shelf Life: Evidence-Based Handling Guide” · healthrx.com/nad-nmn/storage-stability · Facts checked 2026-10-18

Product on hand

Product and formcapsule, tablet, bulk powder or liquid
Ingredient on the labelbeta-NMN, nicotinamide riboside chloride, or other
Lot number and expiry date
Date opened
Where it is kept, and the usual temperature there
Desiccant packet inside?yes or no

What the reviewed stability data say

  • The beta-NMN EFSA assessed is meant to be stored at room temperature in sealed containers, with an intended shelf life of 24 months.[1]
  • Its tested parameters did not change after 6 months at 40°C and 75% relative humidity.[1]
  • NR chloride was stable for at least 36 months under ambient conditions; its maker still recommends refrigerated storage, with a 36-month shelf life.[2]
  • NR chloride averages about 96% purity when made; its specification allows down to 90% to account for breakdown over the shelf life.[2]
  • Dissolved in water, NR formed about 1% nicotinamide in 3 weeks at 5 °C, about 20% at room temperature and about 90% at 40 °C.[3]

At purchase and at home

  • Container sealed, opaque or amber, with a desiccant packet
  • Expiry date written in the box above
  • Kept cool and dry, away from the stove and direct sun
  • Cap closed straight after taking each dose
  • Not left in a hot car or in checked luggage in summer
  • A bottle that arrived soft, clumpy or swollen reported to the supplier
  • Any dissolved or liquid product kept frozen in portions, not refrozen repeatedly

Monthly inspection

DateWhere storedColourClumping or oily?SmellAction taken

Questions for the manufacturer

  1. Was this lot's purity measured near the end of its shelf life, or only when it was made?
  2. What storage temperature and humidity does the expiry date assume?
  3. Is the NR in this product nicotinamide riboside chloride?
  4. Can I see this lot's certificate of analysis, including HPLC purity, heavy metals and microbial limits?
Sources for the facts on this sheet
  1. Turck D, Bohn T, Cámara M, et al (EFSA Panel on Nutrition, Novel Foods and Food Allergens). Safety of beta-nicotinamide mononucleotide (β-NMN) pursuant the regulation (EU) 2015/2283 and the bioavailability of nicotinamide from this source in the context of Directive 2002/46/EC. EFSA J 2026. PMID 42125559. https://pubmed.ncbi.nlm.nih.gov/42125559/
  2. Turck D, Castenmiller J, de Henauw S, et al (EFSA Panel on Nutrition, Novel Foods and Food Allergens). Safety of nicotinamide riboside chloride as a novel food pursuant to Regulation (EU) 2015/2283 and bioavailability of nicotinamide from this source, in the context of Directive 2002/46/EC. EFSA J 2019. PMID 32626405. https://pubmed.ncbi.nlm.nih.gov/32626405/
  3. Schabert G, Haase R, Parris J, et al. New Crystalline Salts of Nicotinamide Riboside as Food Additives. Molecules 2021. PMID 34066468. https://pubmed.ncbi.nlm.nih.gov/34066468/

This sheet records information for a conversation with your prescriber or pharmacist. It does not replace their instructions or the medication's prescribing information.