Dermal fillers formulated with hyaluronic acid are extremely safe, particularly because this ingredient occurs in the human body naturally
These extremely rare side effects include: Reactive thrombocytosis during the first week of use in megaloblastic anaemia Hypersensitivity reactions including: rash, itching, exanthema, antibodies to HYDR0XOCOBALAMIN-transcobalamin II Anaphylaxis Hypokalaemia Headache, paraesthesia, tremor Irregular heartbeat (arrhythmias secondary to hypokalaemia) Nausea Vomiting Diarrhoea Fever, chills, hot flushes, dizziness, malaise, pain and / or swelling at the injection site Acne Abnormal colouration of the urine (chromaturia) What should you not do after a B12 shot
they might slow down future injections or ensure you havent taken other vasodilators (like hot drinks or exercise immediately prior) that could amplify that effect
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We recommend reviewing your insurance policy guidelines thoroughly or speaking directly with your insurer to fully understand your coverage details and any potential out-of-pocket costs