B-Vitamin Nutrient Lab Panel
Vitamin B1 (Thiamine), LC/MS/MS 
Vitamin B2 (Riboflavin), HPLC 
Vitamin B3 (Niacin / Nicotinic Acid / Nicotinamide), LC/MS/MS 
Vitamin B5 (Pantothenic Acid), LC/MS/MS 
Vitamin B6 (Pyridoxine), LC/MS/MS 
Vitamin B9, Serum 
Vitamin B12 (Cobalamin), Serum