Add salts to a warm bath (37-39°C is ideal). Relax and soak for at least 20 minutes. To help maintain general wellbeing, use around 100-250g (1/2-1 cup) 1-3 times per week, If you don't bathe as regularly, then you may prefer to have a more intense transdermal magnesium bath with 500g-1Kg (2-4 cups) once a week. You can use alongside other bath salts, oils and foams, so any bath can be boosted with Magnesium flakes.Key Precautions: Seek advice of a healthcare professional before use if you are pregnant or breastfeeding.