On a summers day it will start to kill weeds within 2-3 hours, with visible signs in within 4-5 days it takes 6 or more hours in the winter. If it rains it will be much less effective. Roundup fumes are not toxic, it's a herbicide not a pesticide so try not to drench yourself in it or drink it.
The best time to take Magnesium-OK is after a meal, once a day with a liquid, every day, according to Wassen, the product manufacturer. The nutritional supplement tablets, specially formulated for women, contain eight vitamins and six minerals to maintain general vitality and health throughout the monthly cycle.
It's safe to get high levels of magnesium from food. But excessive use of magnesium supplements can be toxic. The upper limit -- the highest dose a person can take -- of magnesium supplements is: 65 mg/day for children ages 1-3.