Ingredients/Components [Active Ingredients] Sodium Bicarbonate, Sodium Carbonate [Other Ingredients] Anhydrous Citric Acid, Vitamin C・Na, Glycine, and 3 other ingredients How to Use Dissolve approximately 4 tablets (5 tablets for about 200L) in about 160L of lukewarm water (36℃～41℃) and use. We recommend the "Heavy Carbonic Acid Bath Method," which involves soaking in the heavy carbonic acid-dissolved water for 15 minutes or more.