Brand from Japan: Kneipp Japan. A trial set where you can choose from all the sparkling tablet varieties to match your mood each day.Kneipp's bicarbonate bath additive, infused with natural herbal essential oils. Indulge in a premium bath time, soothing yourself with luxurious scents and high-quality carbonated bubbles.How to use:Dissolve one Sparkling Tablet in the bath water (approximately 200L) and take a bath. The bicarbonate ions (sodium hydrogen carbonate: base) remain dissolved in the water even after the bubbles disappear, so the effect lasts for a long time.