Powerbar magnesium ampoules powerbar magnesium liquid is a food supplement in a convenient ampoule with magnesium and vitamin b6 features 250mg magnesium per ampoule to support energy metabolism and normal muscle function vitamin b6 contributes to normal protein metabolism recommended usage drink one ampoule per day in addition to a varied and balanced diet and a healthy lifestyle do not exceed the recommended daily intake this food supplement should not be used as a substitute for a varied