Here are the main signs and symptoms of B12 deficiencies that show up at this stage of life: Tiredness and fatigue Difficulty thinking or memory issues Low moods such as apathy, depression, or irritability Digestive complaints Issues staying asleep Feeling like your heart is racing and pounding Other common complaints include Numbness, tingling, or other altered nerve like sensations in your body such as burning feet Clumsiness, balance, or gait problems Development of tremors Vision changes Feeling light-headed, weak, or dizzy Feeling short of breath Having an inflamed red tongue Loss of appetite Cardiovascular complications Bone loss You can assess your B12 levels in a few different ways You can test B12 on its own and depending on where you live in the world this range varies significantly, which is insane

Everything is included, needles, alcohol swabs etc Great product I felt energized after two dosages I asked for a slightly smaller needle , like a 28 gauge, or tb size, but I got no answer about getting those instead clear instructions, works great Love it
Always dispose of used needles properly
B12 is the vitamin your nerves, your mood and your metabolism quietly run on
Do not double-dose to compensate
doi: 10.1038/nrendo.2010.215 63 XavierMJRomanSDAitkenRJNixonB