For alopecia areata, supplementing with Vitamin B and calcium pantothenate can aid in hair regrowth. However, alopecia areata is not solely caused by vitamin deficiency; it is largely related to genetics and psychological factors. Stress, anxiety, depression, frequent late nights, insomnia, and poor rest can contribute to this condition. Immune factors can also lead to alopecia areata. In cases of alopecia areata, besides daily oral vitamin supplements, if the condition is severe, it is advisable to seek treatment under the guidance of a physician. This may include treatment based on Traditional Chinese Medicine (TCM) diagnostics, or taking Chinese patent medicine such as "Yan Xie Sheng Fa" capsules and "Qi Bao Mei Ran" pills, which nourish the blood and promote hair growth. Additionally, integrating Western medicines like L-cysteine tablets and compound glycyrrhizin capsules can also be helpful.