What is Carbonate ion?
Carbonate ion (CO₃²⁻) is the key component of alkaline hot springs. Its strong alkalinity gently dissolves surface proteins — the true source of the famous "silky" feel.
Main Effects
- The source of the "silky" feelThe strong alkalinity of carbonate ions is said to gently emulsify old keratin proteins on the skin's surface. This is what creates the distinctively smooth and slippery sensation often described as a "silky" feel during bathing.
- Key component of alkaline simple springsCarbonate ions (CO₃²⁻) are the primary active component defining alkaline hot springs. In waters with a pH of 8.5 or higher, the chemical balance shifts, causing the ratio of carbonate ions to become greater than that of bicarbonate ions (HCO₃⁻).
- Beauty effect via gentle exfoliationCarbonate ions are said to gently soften old skin cells on the surface, contributing to a smoother skin texture after bathing.
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