We take the safety of our customers very seriously and are products are formulated with this at the forefront. Level of Vitamin B12 in our supplement is 1000ug. 

The upper safe level suggested by the EU Expert Group on Vitamins and Minerals is 2000ug. In their review on 'Tolerable Upper Intake Levels as derived by the Scientific Committee on Food (SCF) and the EFSA Panel on Dietetic Products, Nutrition and Allergies (NDA)' EFSA state that vitamin B12 has 'No clearly defined adverse effects'. 

We are confident that these two scientific bodies have looked at the evidence and that our Vitamin B12 product is therefore within safe levels for human consumption if taken as advised on the label.