How to store NMN so it stays in good condition
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Store NMN below 25°C, somewhere dry and out of direct sunlight, with the lid closed. A kitchen cupboard away from the oven is ideal. Use it before the best-before date on the bottle; our NMN has a shelf life of two years from manufacture.
Where to keep NMN, and where not to
| Place | Fine? | Why |
|---|---|---|
| Kitchen cupboard away from the oven and kettle | Yes | Cool, dry and dark |
| Bedside drawer | Yes | Usually below 25°C and out of the sun |
| Bathroom cabinet | No | Steam from showers makes it humid |
| Windowsill | No | Direct sunlight and heat |
| Car glovebox or a bag left in a hot car | No | Can get far hotter than 25°C in summer |
Loose powder needs more care than capsules. NMN capsules vs powder vs sublingual compares the formats.
Does NMN need to be refrigerated?
You do not need to. Below 25°C is what the label asks for, and most UK homes manage that for most of the year. If you do keep it in the fridge, let the bottle come up to room temperature before you open it, so moisture does not form on the capsules.
How to tell if your NMN has been stored badly
Capsules that stick together, look damp or have changed colour have probably met moisture or heat. If that happens, or the bottle is past its best-before date, replace it. Keep the small sachet inside the bottle if there is one; it is there to absorb moisture.
Travelling with NMN
Take what you need in a small pill case and leave the main bottle at home in its cupboard. In hot countries, keep the case in your room, not in a beach bag or a hire car. Our guide to checking your NMN covers the other things worth checking, from the certificate of analysis to the dose.