Can i take biotin and folic acid together?

Yes: Per Drugs.Com drug interaction checker - there are no significant interactions between biotin & folic acid.

See below: You may take both of these, however, unless you have deficiency of a vitamin, taking it will not do you any good. Have a healthy diet, exercise 30 minutes/day, drink plenty of water, have safe sex, no tobacco alcohol weed or street drugs. For nutrition: http://www.choosemyplate.gov/.