Experience a peaceful night\'s sleep with the Magnesium Flakes from Westlab; the UK\'s leading bath salt experts. Suitable for use on sensitive skin or skin prone to eczema, psoriasis and dermatitis Formula increases the body\'s level of magnesium; an essential mineral required for muscle and nerve function. Works to minimise fatigue, reduce anxiety and aching limbs, leaving you feeling calm, relaxed and prepared for a restful sleep. How to use: Dissolve salts in a bath of 37-39°C. Relax and soak for 20 minutes. Use approx 250g per bath. Ideally bathe 2-3 times per week.