Sofina iP vs Sofina iP — side by side, no bias.
Our pick
iP Base Care Serum
8.9/10 · Sofina iP
| iP Base Care Serum | iP Interlink Serum | |
|---|---|---|
| Brand | Sofina iP | Sofina iP |
| Category | serum | serum |
| Editor Rating | 8.9/10 ★ | 8.7/10 |
| Category | serum | serum |
| Texture | Carbonated foam serum that fizzes on application | Lightweight, silky serum |
| Finish | Plumped, hydrated, glowing | Smoothed, lifted, brightened |
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| Verdict | Kao's flagship Sofina iP serum — Japan's #1 selling serum for 4+ consecutive years and absolutely unique in the global skincare market. The pitch: a carbonated (CO2-infused) foam serum that uses the Bohr effect (raised tissue CO2 → increased oxygen delivery to skin cells) to boost microcirculation and skin glow. The texture is genuinely novel — it dispenses as a foaming sphere that liquefies on skin and absorbs in seconds with a tingling carbonation sensation. Sounds gimmicky; works in a way you can feel. | The companion to the Base Care Serum and the second step of Kao's Sofina iP double-serum system — designed to be used after the carbonated Base Care to lock in benefits and add peptide + tranexamic acid + niacinamide treatment work. Where Base Care is the wake-up; Interlink is the treatment. Together they're the J-beauty premium serum protocol that's worth paying attention to. |
