- We need direct sun for 15 minutes a day between noon and 3 pm
without sunscreen for vit D synthesis. Don’t get burned and add
sunscreen after the 15 minutes. Therapeutic blood levels currently are
50 and above. -The Franz Center Team
without sunscreen for vit D synthesis. Don’t get burned and add
sunscreen after the 15 minutes. Therapeutic blood levels currently are
50 and above. -The Franz Center Team