Boost Vitamin B12 Spray, Better You (25ml). BetterYou Boost B12 Oral Spray is an effective aid to normal psychological functions, expertly blended to help boost energy levels.. 4 sprays deliver an impressive 1,200μg of vitamin B12 spray. Vitamin B12 spray supports psychological functions and energy release. Stimulant free, containing natural B12, green tea and chromium. A convenient alternative to tablets and capsules. 48 daily doses. Natural apricot flavour. Packaging made from Ocean Waste Plastic