Improve sleeping, complex vitamin b 100pills(tablets) Vitamin B1,Vitamin B2, Vitamin B3, Vitamin B6, Vitamin B12 Natural Vitamin B Function:1.Be good for the nervous system,2.Be essential for correct digestion,3.Be healthy for our skin, hair and nails,4.Energy production. Product name Natural Vitamin BIngredient Vitamin B1,Vitamin B2, Vitamin B3, Vitamin B6, Vitamin B12, Folic acid, Caldium ...