Urbancal XT Tablets are nutritional supplements that provide essential vitamins and minerals and may support overall health, especially bone health, but they are not specifically intended to treat hair fall. Hair loss can have many causes, such as hormonal imbalance, stress, or underlying medical conditions, so using any supplement without medical guidance is not recommended. An 18-year-old should consult a doctor or dermatologist to identify the correct cause and receive appropriate treatment.