We tailor the treatment regimen based on several factors such as the severity of the deficiency, the patient's overall health condition, and their capacity to absorb Vitamin B12. For instance, those with severe vitamin B12 deficiency may require weekly or biweekly shots until their blood levels return to normal. Once a patient's Vitamin B12 levels normalize, we transition to a maintenance therapy approach, ensuring that the recurrence of deficiency is prevented. The effects of a single B12 shot administered by our healthcare professionals at Hampton Health can last for about one to three weeks, with the body absorbing around 10% of the vitamin from each shot. However, the frequency of these injections depends on individual needs and the recommended dosage. We understand that a variety of factors can affect the duration of the Vitamin B12 shot's efficacy. Factors such as body size, metabolism, potential absorption disorders, and dietary intake can influence the frequency and dosage of the shots. Remember, the duration of efficacy of a B12 shot is an estimate and varies from person to person. That's why it's crucial to consult with our healthcare providers at Hampton Health Wellness Aesthetics to determine the optimal treatment plan for you.