b12 injection pen Synedica NAD+ & B12 1000mg Nad + 4000mcg B12 Injection Pen- USA Vitamin B12 Injections: What You

Protect from light, as Vitamin B12 is light-sensitive

Since B12 is naturally found almost exclusively in animal products, those on strict plant-based diets often lack an adequate source of the vitamin

Possible Side Effects Mild side effects of Vitamin B12 may include: ( 12 ) Mild pain, itching, or swelling at the injection site Temporary nausea or headache Mild diarrhea Hot flashes Vomiting These side effects do not affect all patients and are generally temporary and mild While rare, more serious side effects of Vitamin B12 injections can include ( 12 ): Irregular heartbeat Heart palpitations Hives or skin rash If you notice any severe reactions to a Vitamin B12 shot, contact a medical professional immediately

Some feel nothing until the second or third dose