Oral vitamin B6 can treat seborrheic alopecia, but the effect does not meet the ideal expectations. Patients with seborrheic alopecia can try topical application with minoxidil tincture, and for familial alopecia, they can also try oral finasteride and other medications, but they must be seen in a regular hospital, follow medical advice and monitor the side effects of the medication. Patients with seborrheic alopecia need to avoid spicy, oily foods and sweets to avoid increasing sebum secretion and thus aggravating hair loss. Vitamin B6 can reduce the secretion of sebum, so it can play a supplementary treatment for seborrheic alopecia, but the effect of oral vitamin B6 can achieve the treatment of seborrheic alopecia is actually not that strong.