Yes, Vi-Fi Tablet can help increase vitamin B12 levels because it contains methylcobalamin (active B12), but since it is a combination supplement with other nutrients like folic acid, vitamin B6, alpha lipoic acid, and vitamin D3, it is mainly used for nerve health, nutritional support, and certain other medical conditions rather than as a dedicated treatment for B12 deficiency; if you have a confirmed B12 deficiency, your doctor may advise a more specific therapy such as higher-dose B12 supplements or injections depending on your condition.