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INCI: ONSEN-SUI (UTN)
Onsen-sui refers to Japanese hot spring water, which is naturally rich in various minerals and trace elements. It is used to soothe, hydrate, and condition the skin, often prized for its unique mineral composition.
No specific concern data available
Safety summary
Generally considered very safe and well-tolerated, even by sensitive skin. Allergic reactions are extremely rare due to its natural and pure composition.
For informational purposes only. This is not medical advice. Always patch test new products and consult a dermatologist for skin concerns.