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However, some protocols may require multiple pens to complete a full course

Increased Requirements: Rapidly replenishes B vitamin levels during periods of high metabolic demand, such as post-surgery or chronic stress

Also, if you are on supplementation of Vitamin B12 or folic acid without doctors recommendation, the excess dosage might interfere with medications for thyroid, diabetes, or other autoimmune conditions often seen with vitiligo

Adding more bacteriostatic water lowers the concentration and makes injections significantly more tolerable

You may have a deficiency if you are vegan, dont eat enough B12 rich food, or if you have other health conditions which mean you are unable to absorb it properly, such as pernicious anaemia