Vitamin Deficiency Test lab tests in Personalabs Lab Test Test Cost Vitamin C Blood Test $88.00 Folate, RBC Blood Test $66.00 Vitamin B12 and Folates Blood Test $78.00 Vitamin B12 Blood Test $58.00 Homocysteine Blood Test - Homocysteine Test $80.00 Vitamin B1 – Thiamine Blood Test - Thiamine Blood Test $90.00 Folic Acid/ Folate/ Vitamin B9 Blood Test - Folate Blood Test $66.00 Vitamin E Blood Test - Vitamin E Blood Test $86.00 Vitamin D 25-Hydroxy Blood Test - Vitamin D Blood Test $84.00 QuestAssureD™ 25-Hydroxyvitamin D (D2, D3), LC/MS/MS $84.00 Vitamin B6 Blood Test $95.00 Methylmalonic Acid (MMA) Blood Test - Methylmalonic Acid Test (Blood) $107.00 Methylmalonic Acid (MMA) Blood Test $150.00 Vitamin C Blood Test $225.00 Vitamin B12 Blood Test - Vitamin B12 Testing $51.00 Vitamin B12 and Folates Blood Test - Vitamin B12 deficiency blood test $76.00 Parietal Cell Antibody, ELISA $245.00 Vitamin B6 Blood Test $106.00 Comprehensive Vitamin Profile Blood Test $439.00 Vitamin B1 – Thiamine Blood Test $80.00