However, anecdotal reports from online forums cited in a 2025 systematic review included anxiety and panic attacks, depression and anhedonia, insomnia, heart palpitations, fatigue and weakness, and loss of appetite
Within 24 to 48 hours of NAD + administration , patients often report systemic effects such as: Increased mental clarity and focus
Nature 458 (7239), 762765
Mood Changes and Depression Vitamin B12 plays a key role in the production of serotonin, a neurotransmitter that helps regulate mood
Oral supplements are available, but they may not be absorbed efficiently by the digestive system
Patients recovering from surgery or injury, or those wanting to reduce downtime after aesthetic skin treatments such as laser resurfacing