Oosure plus is a brand of L-methyl folate , mecobalamin and pyridoxal-5-phosphate. It is mainly used as a supplement by expecting mothers
Oosure plus containing all active form of vitamins would be rationale approach to prevent NTDs, pregnancy related anaemia and associated pregnancy complications due to elevated homocysteine levels.
 Role of key ingredients:
L-methylfolate - the active form of folic acid used by your body. This active form of folic acid is proven to be up to 700% more bioavailable than regular folic acid . L-methylfolate is proven to lower levels of homocysteine - an amino acid linked to pregnancy complications. 
Mecobalamin deficiency  is linked with increased risk of intrauterine growth retardation, abnormal embryo-foetal brain development, cleft palate and metabolic syndromes.  
Pyridoxal 5 Phosphate is the active form of vitamin B6 . B6 may play a role in the prevention of pre-eclampsia, where the mother’s blood pressure is high with large amounts of protein in the urine or other organ dysfunction, and in babies being born too early (preterm birth). Vitamin B6 may be helpful for reducing nausea in pregnancy.
 
Use under medical supervision.