Brand from Japan: BARTH. BARTH FOR RELAX is a neutral bicarbonate bath additive developed by BARTH, a company dedicated to promoting sleep. It combines the warming effects of bicarbonate ions*1 with a relaxing fragrance through an original formula.When added to hot water, it generates fine bubbles, thoroughly dissolving bicarbonate ions*1 into the water and maintaining its concentration for a long time.The active ingredients enhance the bath's warming effects and promote fatigue recovery.BARTH's original fragrance is a balanced blend of 10 natural essential oils*2, including lavender.The gentle fragrance, like being enveloped in a soft mist, calms the mind before bed.Lavender Fog is a gentle fragrance perfect for preparing for bed.A balanced blend of 10 natural essential oils*2, including lavender.The relaxing scent of lavender is combined with deep cypress and bitter bergamot to create a natural, high-quality fragrance that will have you taking a deep breath.Abundant bicarbonate ions*1.The