Citric Acid 10 x 10g Sachets. Citric Acid. that contain various levels of Citric Acid. Bath bombs can be formulated with oils and butters, such as almond oil and shea butter. Kettles : Half fill a kettle and boil, then empty 1-2 sachets of citric acid (10-20 Grams) into the kettle and let it stand for about half an hour.
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