Refrigerators are dark most of the time, but if you open the door frequently, the internal light can expose the vial to repeated low-level light
The authors identified future areas of investigation including male models, long-term treatment effects, and combination with other NAD+ precursors such as NMN
General Sales List Medicines (GSL): Can be purchased from general retail outlets (e.g., supermarkets, corner shops) without the supervision of a pharmacist
However, the reported side effects in humans are almost entirely anecdotal , drawn from user forums, clinician case observations, and biohacking communities rather than controlled trials
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