Make Bath Time - Fun Time! Aromatherapy Bath bombs use natural ingredients to fizz without the dye, so no scrubbing baths afterwards. They use essential oil, castor oil, with bicarbonate of soda, citric acid, Epsom salts, floral water, soap, and natural colour. Available in lemongrass, neroli with mandarin, rose or lavender. Made in small batches in Clogherhead, Co. Louth Can cause sensitivity, avoid eyes.